Last updated: August 20, 2026
A published-rate audit. Future Stack Reviews did not open an account, place a call, request a quote, or view a checkout screen or invoice with any company named here. Everything below describes what these companies published on their own pages on 20 August 2026.
Call tracking software attributes phone calls to marketing sources. The eight platforms reviewed here do not package the underlying telephony the same way. Published pricing takes at least five forms: a fixed monthly bundle, a shared usage credit, separately metered numbers and calls, package-dependent inclusive calls the vendor has not mapped to its current plans, and an annual number entitlement behind a quote. Subscription price alone cannot show which platform is cheaper.
Verdict: build the shortlist from your number pool, call-length distribution and country, then compare prices.
Use this briefing if
- You know your call volume but cannot reproduce a vendor’s invoice from its pricing page
- You are deciding between one agency plan and several individual accounts
- You need a number outside the United States and price is the second question
- You are leaving CallRail after the Lead Center sunset and need to scope the move
What this briefing does not cover
- Attribution accuracy, routing quality, support quality or implementation effort
- Any figure behind a login, a checkout, a quote or a negotiated order form
- Taxes, regulatory recovery charges and carrier pass-through amounts
- A product ranking. No product here was operated by Future Stack Reviews
At a glance, read 20 August 2026
| Scope | Eight vendors, nine billing contexts. CallRail’s call tracking plans and its Voice Assist agent are metered separately and counted separately. |
| Packaging models found | Five. Fixed bundle, shared usage credit, separately metered usage, package-dependent inclusive calls, and annual number entitlement behind a quote. |
| Vendors whose monthly total can be computed from published information alone | None of the eight. Six publish enough for a partial model. Two publish no usable rate at all. |
| Billing events in use | At least four. The answered call, the call of one second or more, the call answered by an AI agent and lasting beyond fifteen seconds, and the minute. |
| Where the price ladder adds telephony | Nowhere in the two vendors that publish a monthly allowance. CallRail shows 5 numbers and 250 minutes on all four plans. WhatConverts shows the same $30 credit on all four single-account plans. |
| Pricing questions that a public page did not answer | Eight, across five vendors. Each is listed with the page it sits on in section 08. |
Contents
What changed, and which buyers it moved
CallRail announced the sunset of Lead Center on 7 October 2025 and began phasing it out on 27 January 2026, including the Lead Center mobile app. The softphone workflow retired with it. CallRail’s outbound dialer and its Messaging product remained, and the company published a RingCentral migration path for teams that needed queues, transfers and active routing. Buyers who chose CallRail to keep tracking and calling under one login are the group this affects.
CallRail also began selling Voice Assist, its AI phone agent, without a call tracking subscription. Its product site states that Voice Assist is available in the United States as a standalone product and describes call tracking as an optional addition. The pricing on that product differs between two CallRail surfaces, which section 08 records.
CallTrackingMetrics now trades as CTM, on ctm.com, with the company name unchanged in its copyright line.
Sources: CallRail, Lead Center sunset, read 20 August 2026 · CallRail, Voice Assist pricing page, read 20 August 2026 · CTM, plans and pricing, read 20 August 2026
Five ways this category packages telephony
Telephony inclusion is not a yes-or-no field, and the eight vendors reviewed here spread across five different states.
| Vendor and packaging model | Included telephony, as published | Monthly total computable? | What blocks a full total |
|---|---|---|---|
CallRail Fixed monthly bundle | 5 local numbers and 250 local minutes on all four plans | Partial | Retrieval of the same page returned two different additional-minute rates |
WhatConverts Shared usage credit | $30 credit on all four single-account plans. $250, $300 and $400 on agency plans | Partial | No rounding or minimum-duration rule found on the pricing page |
CTM Separately metered | None. The vendor states this in writing | Partial | Messaging rates carry carrier fees with no amount shown |
Nimbata Separately metered | None. Numbers and answered calls are priced per unit | Partial | A pricing-page FAQ on how calls are charged was not expanded for this briefing |
CallScaler Separately metered | None. Numbers, minutes and texts draw from a prepaid balance | Partial | The page and its own FAQ disagree on whether upgrading changes rates |
Ringba Separately metered | None stated on the public Business and Professional tables | Partial | Transcription carries a note that further services may add cost |
Infinity Package-dependent inclusive calls | Cards show none. A knowledge base article says some packages include 250 calls, without naming which | No | Carrier minute tariffs are published for two regions only |
Invoca Annual number entitlement, quote only | 6,000, 12,000 and 18,000 annual local or toll-free numbers across three tiers | No | No dollar figure appears on the pricing page |
States describe each vendor’s public standard plans as read on 20 August 2026, and exclude enterprise, custom and negotiated terms. A verdict of No means a total cannot be assembled from published figures, and not that the vendor is more expensive. Sources for every figure are listed at the end of this section.
Three of these rows deserve a note.
CTM states its position directly. Its plan FAQ page says that, unlike some other call tracking solutions, <a href=”https://www.ctm.com/plans-pricing/faqs/” target=”_blank” rel=”noopener”>”our plans do not come with any included numbers or minutes”</a>. The subscription buys software access and plan features. Numbers and minutes are funded separately.
WhatConverts publishes a credit rather than a quantity, and the credit is shared. Its four single-account plans each display $30 of included usage and an estimate of up to 148 tracked phone-call leads, with Plus, Pro and Elite additionally showing up to 300 tracked forms, chats and transactions. Those two figures draw on the same $30. They are alternative uses of one budget, so a month that reaches 148 calls does not also reach 300 forms.
Invoca sits outside a monthly comparison entirely. Its cards state annual number entitlements and custom Signal counts, its Signal AI conversation analytics suite is listed as an optional add-on at every tier including Elite, and every plan routes to a quote request. The entitlement is real and published. The mechanics behind it, including replenishment, concurrency and overage, are not.
Sources: CTM, plan FAQs, read 20 August 2026 · CallRail, pricing page, read and retrieved 20 August 2026 · WhatConverts, pricing page, read 20 August 2026 · Nimbata, pricing page, read 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · Ringba, pricing page, read 20 August 2026 · Infinity, US pricing, read 20 August 2026 · Infinity, service costs knowledge base, retrieved 20 August 2026 · Invoca, pricing page, retrieved 20 August 2026
A call log total is not a billing input
Two platforms can receive the same call and write two different usage records.
| Billing context and unit | Counting rule found on the pages checked | Unanswered call billed? | On what basis |
|---|---|---|---|
CallRail Voice Assist Qualifying call | “Calls only count towards your usage if Voice Assist answers” and the call runs beyond fifteen seconds | No | The product FAQ makes answering by the agent a condition of the charge |
Nimbata Answered call | The pricing page headline states a flat rate per answered call. The same page carries a FAQ entry on how calls are charged, which was not expanded for this briefing | No | Not counted by the published primary meter. Number rent and other lines apply regardless |
Infinity Call from one second, plus carrier minutes | Cost per call applies to any call lasting one second or more. Carrier minute charges are separate, calculated per second and rounded to the nearest penny per call | Not stated | The published threshold is duration. Answer status is not specified in the article checked |
CallRail call tracking Minute | Each call rounded up to the nearest minute, then summed | Not stated | No rule found on the pricing page |
CTM Minute | Published rate differs by termination path. Forwarding to an external phone and terminating in CTM’s softphone are priced separately | Not stated | No rule found on the pages checked |
WhatConverts Minute | Per-minute rates published. No rounding or minimum-duration rule found on the pricing page. A separate billing FAQ exists in the help center and was not opened for this briefing | Not stated | The help center billing FAQ was not opened for this briefing |
CallScaler Minute | Per-minute rates published. No rounding or minimum-duration rule found on the pricing page | Not stated | No rule found on the pricing page |
Ringba Minute | Total call duration rounded up, one-minute minimum. Its fees article states that calls disconnecting in the IVR without reaching a target are still billed | Yes | Its fees article states such calls consume system resources and are billed |
Invoca Not published | The cards state annual number allocations. No usage meter or rate appears on the pricing page | Not stated | No usage meter is published |
Where a rule is described as not found, it was absent from the pages listed in this section’s source note. Vendors may publish it elsewhere, including in a contract or a help center article not opened here. Not stated is a statement about the pages checked and not a statement about the vendor’s actual billing.
The practical effect is that a monthly report reading “1,000 calls, 3,000 minutes” is not enough to price any of these platforms. Ringba’s meter follows total platform duration rather than the time connected to a destination, so IVR abandonment is a telecom cost as well as a conversion problem. Infinity applies two layers, a per-call fee from one second and a per-second carrier charge, so quoting only its 15 or 20 cents per call omits half the bill. And where rounding is applied per call, the distribution of call lengths matters more than the total: a thousand 40-second calls and a thousand 90-second calls contain the same customers and bill very differently.
Fields to export before you request a quote
- Active local and toll-free numbers, and the pool size each source needs
- Answered calls and unanswered calls, counted separately
- Calls that reached the tracking platform but never reached a person
- Per-call duration distribution, not only total minutes
- Average call duration by forwarding destination
- Calls that ran longer than fifteen seconds
- Share of calls recorded, transcribed or analyzed
- Number of client accounts, sub-accounts and users
- Caller country, number country and forwarding destination country
Sources: Nimbata, pricing page, read 20 August 2026 · Infinity, service costs, retrieved 20 August 2026 · CallRail, Voice Assist pricing page, read 20 August 2026 · CallRail, pricing page billing FAQ, read 20 August 2026 · CTM, global pricing, read 20 August 2026 · Ringba, types of fees and charges, retrieved 20 August 2026 · WhatConverts, pricing page, read 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · Invoca, pricing page, retrieved 20 August 2026
The number pool can outrun the software fee
CTM publishes a sizing rule that most buyers never see, and it is the fastest way to sanity-check a subscription comparison.
Number pool cost, using CTM’s own rule and CTM’s own rate
| CTM’s published sizing guidance for dynamic number insertion | Around one tracking number per 20 daily visitors |
| CTM’s own worked example | One source sending 1,000 visitors per day needs 50 numbers |
| CTM’s published US local number rate | Starting at $2.00 per number per month |
| That pool, at that starting rate | $100 per month, before minutes, recording, transcription, carrier fees or the subscription |
Future Stack Reviews calculation from CTM’s published sizing guidance and its published starting US rate. One paid source only. Not an invoice observation, and not a forecast for any other vendor.
At CTM’s starting rate, that pool costs more per month than CTM’s entry subscription. The same discipline applies wherever a per-number rate is published: CallScaler at 50 cents, CTM and Ringba Professional at $2.00, WhatConverts agency at $1.75, WhatConverts single at $2.50, CallRail and Ringba Business at $3.00. Across fifty numbers, the spread between the cheapest and dearest of those is $125 per month, which is larger than several of the subscriptions being compared.
Sources: CTM, plan FAQs, read 20 August 2026 · CTM, global pricing, read 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · WhatConverts, pricing page, read 20 August 2026 · Ringba, pricing page, read 20 August 2026 · CallRail, pricing page, read 20 August 2026
Which pricing structure to model first
This is a shortlist of pricing structures to quote, not a product ranking. Nothing in this briefing tests attribution quality, routing, support or implementation.
How to use this
Find the line that describes your bill, then quote those pricing structures first. This is a shortlist of structures to model, and not a product ranking. Nothing in this briefing tests attribution quality, routing, support or implementation.
Model first
CallScaler at $0.50 per number. CTM and Ringba Professional at $2.00
Get in writing
Whether upgrading changes usage rates, and what carrier fees apply to messaging
Model first
Nimbata’s answered-call meter
Get in writing
How the answered-call rate behaves on long calls, and what unanswered calls cost
Model first
Per-minute vendors, at the rate for your actual termination path
Get in writing
The rounding rule wherever the pricing page does not state one
Model first
Ringba against Nimbata. Ringba’s fees article states such calls are billed. Nimbata’s published meter is the answered call
Get in writing
Whether IVR time, ring time and voicemail are metered
Model first
WhatConverts agency tiers. CallScaler Agency and Pay Per Call
Get in writing
Sub-account limits and pack charges. CTM Marketing Pro includes 25, then $50 per additional pack of 25
Model first
CTM and Nimbata country selectors. WhatConverts country pricing pages
Get in writing
Number type, required documentation, and the forwarding destination’s own rate
Model first
Invoca, on published entitlements only. No dollar figure appears on its pricing page
Get in writing
Subscription, usage, implementation and Signal AI as four separate line items
Rates cited are the published figures read on 20 August 2026 and are listed with their sources in the sections above. A structure named here is a place to start a quote, and not a recommendation to buy.
The seven platforms in brief
CTM publishes Marketing Lite at $79, Marketing Pro at $179, Sales Engage at $329 and Enterprise at $1,999 on monthly billing, with annual prepay bringing the first three to $65, $149 and $274. US rates are published in full: local numbers $2.00, local minutes $0.04 forwarded or $0.027 through CTM’s softphone, toll-free numbers $3.00, toll-free minutes $0.055 or $0.042, outbound $0.031, SMS $0.016 and MMS $0.05, the last two followed by the words carrier fees with no amount attached. CTM states that HIPAA-related features are included in Marketing Pro and above. Marketing Pro includes 25 sub-accounts and 3,000 transcribed minutes per sub-account which the comparison table states do not renew monthly. Full white label is $65 per domain. VoiceAI, its answering agent, is $0.12 per minute with 60 minutes included per agent. CTM’s FAQ states there is no additional fee to port numbers away.
WhatConverts publishes single-account plans at $30, $60, $100 and $160, each with the same $30 credit, and agency plans with unlimited accounts at $500, $800 and $1,250 carrying $250, $300 and $400. Single-tier overage rates are identical across all four: local numbers $2.50, local minutes 4.5 cents, toll-free numbers $3.50, toll-free minutes 6.5 cents, transcription 2 cents per minute, texts 3 cents, and forms, chats or transactions 10 cents. Agency tiers get $1.75, 4 cents, $3.00 and 6 cents. White label is $50 per month on every plan. The agency arithmetic is public: $500 divided by $60 is 8.33, $800 by $100 is 8.00, and $1,250 by $160 is 7.81. Around eight client accounts, the agency subscription costs roughly what the equivalent individual subscriptions cost and carries more included credit and more included leads than eight of them.
Nimbata publishes Entry at $0, Pro at $39, Marketing at $89 and Agency at $149 on monthly billing, and $0, $35, $80 and $120 on annual. The page advertises up to 20 percent off annually; the actual discount is 10.3 percent on Pro, 10.1 percent on Marketing and 19.5 percent on Agency. Its unit rates fall as the plan price rises. Per its US help center rate card, a local number runs from $4.60 on the free tier to $1.60 on Agency, and an answered call from 10 cents to 3 cents. The Entry column of its comparison table omits dynamic number insertion, call recording, number porting, the Google Ads integration and the GA4 integration. Webhooks, the API, Salesforce and Google Sheets appear on Agency alone. Seats run 1, 4, 25 and unlimited at $5 each beyond the plan, projects run 1, 2, 5 and unlimited at $10 each, and white label is $55 per month on the three paid tiers.
CallScaler publishes Pro at $65, Agency at $195 and Pay Per Call at $600 monthly, or $45, $130 and $400 annually, a 33 percent annual discount. Its rate table shows identical usage rates on every tier: local numbers 50 cents, toll-free numbers $2.00, local minutes 4.5 cents, toll-free minutes 5.5 cents, texts 2 cents, advanced recording half a cent per minute, and AI transcription six tenths of a cent per fifteen seconds. Pro is capped at 3 businesses and 5 users each. Numbers, minutes and texts draw from a prepaid balance that deducts in real time, and porting a number out costs $10.
Ringba publishes Business at $147 and Professional at $297 monthly, or $127 and $197 annually, with Enterprise custom. Business pays 5.5 cents per local tracking minute, 6 cents toll-free, $3 per local number, $4 per toll-free number, 1 cent per recorded minute, 15 cents per caller profile lookup, 4 cents per transcribed minute and 5 cents per voice agent minute. Professional pays 5 cents, 5.5 cents, $2, $3, half a cent, 12 cents, 3.5 cents and 5 cents. The subscription difference is $150 on monthly billing, and the published rate deltas are half a cent per minute each on tracking, recording and transcription. If all three apply to the same minutes, the difference recovers at 10,000 minutes per month; if only tracking applies, at 30,000. That model uses monthly billing, excludes number rent and caller profile lookups, and assigns no value to the white label, Ring Trees, predictive routing and revenue recovery that Professional adds.
Infinity publishes Essentials at $249 with 20 cents per call, Pro at $349 with 15 cents per call, and Enterprise on application. Contract length is described as monthly rolling and support as 24/7. The cards show no included call allowance and no trial. The reporting API begins at Pro and the configuration API is Enterprise only. Its cost per call sits on top of carrier minute charges billed separately, and the public call tariff index it links to lists inbound and outbound rates for the United Kingdom and for the United States and Canada. Separately, Infinity’s homepage says it is <a href=”https://www.infinity.co/us/” target=”_blank” rel=”noopener”>”Trusted by marketers in 75+ countries”</a>, which describes where its customers are rather than where it issues numbers.
Invoca publishes three tiers on its brands and agencies track and two on its pay-per-call track. Pro includes 6,000 annual local or toll-free numbers and 5 custom Signals, Enterprise 12,000 and 50, and Elite 18,000 and 100. Signal AI is listed under optional add-ons at every tier, Elite included. No dollar figure appears anywhere on the pricing page, and every plan routes to a quote request.
Sources: CTM, plans and pricing, read 20 August 2026 · CTM, global pricing, read 20 August 2026 · CTM, plan FAQs, read 20 August 2026 · WhatConverts, pricing page, read 20 August 2026 · Nimbata, pricing page, read 20 August 2026 · Nimbata, additional charges help article, retrieved 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · Ringba, pricing page, read 20 August 2026 · Infinity, US pricing, read 20 August 2026 · Infinity, homepage, read 20 August 2026 · Invoca, pricing page, retrieved 20 August 2026
What a number costs outside the United States
Outside the United States, confirm number availability before comparing price.
CallRail’s pricing FAQ names the United States, Canada, the United Kingdom and Australia, with separate UK and Australia pricing pages. Its Voice Assist product FAQ names the United States for the standalone product and directs interest elsewhere to sales. CTM states service in more than 80 countries and adds that <a href=”https://www.ctm.com/plans-pricing/global” target=”_blank” rel=”noopener”>”Additional documentation may be required to obtain phone numbers outside of the U.S.”</a> Nimbata and WhatConverts both publish country-selectable rates. CallScaler’s rate card describes US area codes. Invoca publishes no rate for any country.
Nimbata publishes the most granular non-US detail, which makes it the clearest illustration. Its pricing page carries a country selector inside the detailed comparison section, and the plan cards sit above that section in a block with no selector of their own. Selecting Japan changes the usage table as follows.
| Nimbata usage rate, Japan selected | Entry$0 per month | Pro$39 per month | Marketing$89 per month | Agency$149 per month |
|---|---|---|---|---|
| Local number, per month | $38.00 | $26.60 | $19.00 | $13.30 |
| Answered call, local | $1.08 | $0.63 | $0.40 | $0.29 |
| Toll-free number, per month | $238.50 | $167.00 | $119.30 | $83.50 |
| Answered call, toll-free from a landline | $3.36 | $1.95 | $1.24 | $0.89 |
| Answered call, toll-free from a mobile | $6.59 | $3.82 | $2.43 | $1.74 |
| Call transcription, per minuteUnchanged across paid plans | Not available | $0.02 | $0.02 | $0.02 |
Two ladders, calculated from the published figures
The two number rentals step down in the same proportions across the four plans, at 100, 70, 50 and 35 percent of the Entry rate. The three answered-call lines step down further, at 100, 58, 37 and 27 percent. Transcription does not step down at all. Bars are scaled within each row against that row’s Entry rate, or against the Pro rate where Entry has no rate.
Read from Nimbata’s pricing page with the country selector set to Japan and captured as a dated screenshot on 20 August 2026. Plan prices are the monthly billing state. Nimbata marks the usage rows “starting at”, so these are floor rates rather than a quoted price. Percentages are a Future Stack Reviews calculation from those published figures and are not an invoice observation.
Japanese toll-free splits by how the caller dialed, and a call from a mobile costs roughly double a call from a landline on every tier. No such split appears in Nimbata’s United States rate card.
For scale, a raw communications provider publishes its own Japanese rates. Twilio lists national numbers at $4.75 per month, local 0ABJ numbers at $20.00, toll-free numbers at $25.00, and toll-free inbound at $0.1854 per minute.
These figures do not establish markup. Twilio’s rate is a carrier and API price. It is not Nimbata’s procurement cost, and the two services are not equivalent in provisioning, routing, support, contract terms or volume commitments. Nimbata also does not state which Japanese number type its local rate provisions, so the local rows are not strictly comparable. What the figures do support is narrower: a Japanese number carries a published cost well above a United States one at both a raw provider and a full platform, and the platforms in this briefing differ in whether they will show you that cost before a sales conversation.
Sources: Nimbata, pricing page with Japan selected, read 20 August 2026 · Nimbata, additional charges help article, retrieved 20 August 2026 · Twilio, Japan voice pricing, read 20 August 2026 · CTM, global pricing, read 20 August 2026 · CallRail, pricing page FAQ, read 20 August 2026 · CallRail, Voice Assist FAQ, read 20 August 2026
Eight questions a public page did not answer
These are rendering and documentation conflicts, not findings of deceptive pricing. Pricing pages are assembled from components and components fall out of step. They are recorded because on 20 August 2026 none of these questions could be settled from published information alone.
One. Which CallRail Voice Assist price applies. The main pricing page shows Voice Assist starting at $95 per month, with a footnote reading All plans include Lead Tracking starting at an additional $55. The Voice Assist product site shows $95 and $75 on one card and states that the standalone product is available in the United States. Standalone eligibility is settled by the product site; the price presentation is not.
Two. Whether the Voice Assist allowance is 50 calls or 55. The rendered footnote reads 50. An automated retrieval of the same URL on the same date returned three footnote variants, one of which set the threshold at 55.
Three. Whether CallRail’s additional local minute is 5 cents or 6. The same retrieval returned three comparison tables from one page showing both figures, with the analysis-minute and transcription-minute rows differing between them. Both states are recorded and neither is presented as the live one.
Four. What a CTM Enterprise commitment costs. The plan cards, the detailed comparison table and the global pricing page do not render the Enterprise tier consistently. The $1,999 figure appears labelled as billed monthly on some surfaces and billed yearly on others, and a two-year figure of $1,500 appears on one table and not on the others. No Enterprise total should be treated as settled without a quote.
Five. What CTM’s carrier fees add. Text messages are published at $0.016 and MMS at $0.05, each followed by the words carrier fees with no amount shown on that page.
Six. Whether CallScaler’s rates change on upgrade. A line beneath the plan cards states that Every plan pays the same low usage rates, and the rate table on the same page shows identical rates on all three tiers. The FAQ on that page states that upgrading gives better usage rates immediately. The rendered table and the FAQ describe different rules.
Seven. Whether a Nimbata project costs $10 or $15. The pricing page comparison table prices additional projects at $10 per month per project. Nimbata’s help center article on additional charges prices an extra project at $15. Its free tier also appears as Entry on the pricing page and as Free in the help center.
Eight. Whether Infinity’s current plans include 250 calls. The current US pricing cards show no included call allowance. Infinity’s service costs knowledge base states that some packages include 250 inclusive calls, and does not identify which packages or whether Essentials and Pro are among them.
Each of these requires written confirmation. Some will appear on an order form. Others sit with support or in product documentation, and asking the right team saves a round trip.
Sources: CallRail, pricing page, read and retrieved 20 August 2026 · CallRail, Voice Assist pricing page, read 20 August 2026 · CTM, plans and pricing, read 20 August 2026 · CTM, global pricing, read 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · Nimbata, pricing page, read 20 August 2026 · Nimbata, additional charges help article, retrieved 20 August 2026 · Infinity, US pricing, read 20 August 2026 · Infinity, service costs knowledge base, retrieved 20 August 2026
Numbers, records and configuration when you leave
Leaving has three workstreams, and they behave differently.
Numbers may be portable, subject to carrier, country, account status and documentation requirements. CTM’s FAQ states there is no additional fee to port numbers away and describes US porting as taking about two to four weeks. CallScaler publishes a $10 per number port-out fee and a self-service port-out request. Across 250 numbers, that is $2,500 on the way out. For the other five platforms, no port-out fee was found on the pages checked, which means it was not published there.
Records have a ceiling. CallRail’s Call log export supports a user-selected date range and offers Excel, Excel with all columns, Excel with transcriptions, and print. Exporting with transcripts requires the Premium Conversation Intelligence plan. The same article states that for any date-based filtering, communication records are held for a maximum of 25 months. Separately, CallRail’s account-level export is organized by selected month and year, and the Lead Center sunset article directs anyone needing larger batches to contact support. A business that has run call tracking for four years and expects to carry four years of attribution history is working against a shorter window than it may assume.
Configuration has no published transfer path. Across the pricing and migration pages reviewed, no standardized cross-vendor export was documented for dynamic number insertion scripts, call flows, routing logic, integration mappings, tags or lead scores. Absence from these pages is not proof that no path exists, and it is a question worth asking before a migration date is set rather than after.
Sources: CTM, plan FAQs, read 20 August 2026 · CallScaler, pricing page, read 20 August 2026 · CallRail, Export Call log, read 20 August 2026 · CallRail, Lead Center sunset, read 20 August 2026
FAQ
Which CallRail alternative has the most predictable bill?
None of the eight platforms reviewed publishes enough to compute a monthly total without a quote or a support answer. CallScaler comes closest for a number-heavy operation, because its published usage rates are identical on all three tiers, though its own FAQ describes a different upgrade rule. Predictability depends on which unit dominates your bill.
Do more expensive plans include more phone numbers or minutes?
Not in the two vendors that publish a monthly allowance. CallRail shows 5 local numbers and 250 local minutes on all four plans, from $55 to $215 monthly. WhatConverts shows the same $30 usage credit on all four single-account plans, from $30 to $160. Higher tiers add features and non-call capacity instead.
Which platforms charge for calls that are never answered?
Ringba’s fees support article states that calls disconnecting during the IVR without reaching a target are still billed, on total call duration with a one-minute minimum. Infinity’s cost per call applies to any call lasting one second or more. Nimbata’s published meter is the answered call. The other platforms did not state a rule on the pages checked.
How many tracking numbers does dynamic number insertion need?
CTM publishes a rule of roughly one number per 20 daily visitors, with a worked example of 50 numbers for a source sending 1,000 visitors per day. At CTM’s published starting US rate of $2.00 per number, that pool costs $100 per month before any call usage. Published per-number rates elsewhere range from $0.50 to $3.00.
When does an agency plan become cheaper than several individual accounts?
On WhatConverts, around eight client accounts. Its agency plans cost 8.33, 8.00 and 7.81 times the matching individual plans, and carry more included credit and more included leads than eight individual plans do. Below eight, individual accounts are cheaper on subscription, and you give up the master account, the unified bill and the larger credit.
Can I get a call tracking number outside the United States?
It depends on the vendor. CallRail’s FAQ names four countries and its Voice Assist FAQ names one for the standalone product. CTM states service in more than 80 countries and warns that additional documentation may be required outside the US. Nimbata and WhatConverts publish country-selectable rates. CallScaler’s rate card describes US area codes.
Can I port my numbers and export my call history?
Porting is subject to carrier, country, account status and documentation. CTM states no fee to port away and about two to four weeks for US numbers; CallScaler publishes a $10 per number port-out fee. History is the tighter constraint: CallRail’s export article states a 25-month maximum on date-based filtering of communication records.
What should I get in writing before I sign?
The base price and billing period, the included allowance and its renewal behavior, the per-number and per-minute rates for your country and number type, the rounding rule, whether unanswered and IVR-abandoned calls are metered, any carrier or regulatory pass-through, sub-account limits, port-out terms, and data retention. Eight of these were unanswerable from public pages on 20 August 2026.
Methodology and evidence status
This is a Tier C briefing. Tier C means document-first research with no hands-on testing and no claim of use, purchase, ownership or measurement. Future Stack Reviews did not open an account, place a call, request a quote, or view a checkout screen or invoice with any company named here.
Pricing pages that carry a billing toggle or a country selector were read in a desktop browser with the relevant state selected and captured as dated screenshots. A page read in its default state answers a different question from the one a buyer is asking, and every figure in this briefing that depends on a toggle or selector state is tied to a capture of that state.
Four sources were retrieved rather than read in a browser: Nimbata’s additional charges help center article, Ringba’s fees support article, Invoca’s pricing page and Infinity’s service costs knowledge base article. Figures taken from those four are identified by their source note.
Where a rendered page and an automated retrieval of the same URL disagreed, both states are recorded and neither is presented as the live one. This applies to CallRail’s pricing page, which returned three comparison tables and three footnote variants under retrieval against one of each in the rendered view.
Absence is scoped throughout. Where this briefing says a figure or a rule was not found, it means it was absent from the pages listed in that section’s source note. It does not mean the figure does not exist in a contract, a quote, a checkout flow, a help center article not opened here, or a negotiated enterprise agreement. All vendor states described here are public standard plans and exclude custom and negotiated terms.
Statements attributed to a vendor describe that vendor’s published position. Where a vendor states that a plan includes HIPAA-related features or compliance capabilities, that is the vendor’s claim about its product and is not an assessment of whether any deployment complies with any regulation. This briefing contains no legal conclusions.
No competitor comparison table published by any vendor was used as a source. Several of these companies publish figures about each other, and at least one such table does not reconcile with the competitor’s own published rate card.
Twilio appears as a rate reference for one country. It is a communications API rather than a call tracking platform, and it is not presented as an alternative to CallRail.
Verdict
Compare the meter against your workload, then compare prices. The subscription is one line of the invoice, and in four of the eight platforms reviewed it is the only line the vendor publishes with certainty.
Take four counts from your own call log before you contact anyone: answered calls, calls that ran past fifteen seconds, connected minutes with their per-call distribution, and calls your platform handled without connecting a person. Read each rate card against those four rather than against a monthly total. A profile of many short answered calls and a profile of few long conversations do not share a winner, and no pricing page says so.
If you need a number outside the United States, settle availability, number type and documentation first. That gap between the platforms is wider than any gap in their feature lists.
Then take one document into the decision. Eight pricing questions across five vendors could not be answered from public pages on 20 August 2026. Each is listed in section 08 with the page it sits on. Ask for all eight in one written response, and sign against that document rather than against a page.
Contact Future Stack Reviews
Vendor pages change without notice. If a figure here no longer matches what the vendor publishes, tell us. Corrections are dated and logged rather than edited in silently.
| Report a change | Send the page, the figure, and the date you saw it. |
| Vendor right of reply | Every company named here is welcome to respond. Corrections supported by a dated official source are published. |
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Tier C briefing. Document-first research with no hands-on testing. Future Stack Reviews did not open an account, place a call, request a quote, or view a checkout screen or invoice with any company named here. Statements attributed to a vendor describe that vendor’s published position and are not independent verification of product behavior, contractual outcome, or regulatory status. Figures marked as calculations are derived from published rates and are not invoice observations. All vendor states describe public standard plans and exclude custom and negotiated terms. Twilio appears as a rate reference for one country and is not presented as a call tracking platform. Nothing here is legal, tax, or compliance advice. This briefing contains no affiliate links, and Future Stack Reviews received no compensation from any company named in it. Published by 合同会社Future Stack, Osaka, Japan.