If you run marketing across multiple channels, you already know that calls are some of your most valuable leads, and some of the hardest to attribute. Infinity is a UK-based call tracking and analytics platform built to close that gap, especially for businesses with a European footprint. This review covers what Infinity does well, where it falls short, what it actually costs, and how it stacks up against alternatives, including CallRail, the call tracking platform we build. We will keep the comparison honest, because the right pick depends on where your business operates and how hands-on you want setup to be.
What is Infinity?
Infinity is a call tracking and conversation analytics platform that ties inbound phone calls back to the marketing that drove them. Its core is visitor-level attribution with dynamic number insertion, paired with Conversation Analytics for transcription, keyword spotting, and call scoring. Infinity positions itself as call intelligence for data-driven marketers, with its tagline "Make more good calls." More recently it has added Smart Match for revenue attribution and Smart Outcomes for AI bid optimization that feeds call quality back into Google Ads. The company has a strong presence in the UK and broader European markets.
Who uses Infinity
Infinity tends to fit a few clear groups:
- UK and European businesses that need call tracking with regional expertise and data handling built for their markets.
- Marketing agencies managing paid media for clients who want call data flowing back into bid decisions.
- Enterprise marketing teams that need deep, custom conversation analytics and can support an assisted onboarding process.
- Performance-focused marketers who run high call volumes and want attribution tied directly to ad platforms.
Use cases
Use case: Attributing calls to campaigns across regions
Infinity assigns dynamic tracking numbers so a marketer can see which campaign, keyword, or ad drove each call. With tracking-number coverage across 85+ countries, a business running campaigns in several European markets can keep attribution consistent across them. The payoff is a clearer view of which channels produce calls that turn into revenue.
Use case: Feeding call quality back into ad bidding
With Smart Match and Smart Outcomes, Infinity can pass signals about call quality back into Google Ads. Instead of optimizing toward raw call counts, a team can optimize toward the calls that look like good leads. For agencies managing paid search, this can sharpen bid decisions over time.
Use case: Reviewing conversations for coaching and trends
Infinity's Conversation Analytics transcribes calls, spots keywords, and supports custom scorecards at the agent, team, and company level. A sales or service leader can use this to spot common questions, flag missed opportunities, and coach reps. It works best once the scorecards and outcome keywords are configured for your goals.
Infinity features
Infinity bundles attribution, analytics, and ad-platform integrations into one platform. Here is how the main feature areas break down.
Core functionality
The foundation is call tracking with visitor-level attribution and dynamic number insertion. That lets Infinity connect a phone call to the session, source, and campaign behind it. Smart Match adds revenue attribution, and Smart Outcomes applies AI to bid optimization. Together these aim to move teams from counting calls to valuing them.
Analytics and reporting
Conversation Analytics is one of Infinity's stronger areas. It includes transcription, keyword spotting, transcript search, AI-powered call summaries, and custom-built scorecards. The scorecards are flexible, but they require manual configuration before insights surface, and outcome keywords need to be defined up front. So the depth is real, though it asks for setup work before it pays off.
Integrations
Infinity supports 45+ integrations, including Google Ads, GA4, Salesforce, HubSpot, Adobe Analytics, and bid-management platforms. That coverage leans toward analytics and ad platforms, which fits its data-driven positioning. Teams already invested in those tools will find the connections they expect.
Support and reliability
Infinity offers 24/7 support across its plans and runs GDPR-compliant infrastructure with automatic redaction of sensitive details, which matters for European data handling. Onboarding is assisted by Infinity's team, covering code deployment, integration setup, and testing, rather than being fully self-serve. That hands-on help can be reassuring for complex rollouts, though it also means you depend on their team's schedule to get live.
Strengths and limitations
Infinity's strengths are genuine. It has a strong UK and European market presence, deep Conversation Analytics with custom scorecards, global tracking-number coverage across 85+ countries, and GDPR-compliant infrastructure with automatic data redaction. Its 45+ integrations cover the major ad and analytics platforms, and Smart Match and Smart Outcomes give performance marketers a way to push call quality back into Google Ads.
The trade-offs are just as real. Infinity has less US market presence than several North American competitors. It has no AI voice answering product, so it cannot answer or qualify calls on your behalf. Per-call usage fees stack on top of the monthly base, which can make costs harder to predict at higher volumes. Implementation is team-assisted rather than fully self-serve, and the Conversation Analytics scorecards and outcome keywords require manual configuration before they produce insights. None of these are dealbreakers, but they shape who Infinity fits best.
Pricing
Infinity now publishes tiered pricing on its US site, with per-call usage fees on top of the monthly base. Here is the current breakdown.
- Essentials: $249/month plus $0.20 per call, on a monthly rolling contract with 24/7 support. It includes call tracking, Google, Meta, and Microsoft integrations, call recording, missed-call alerts, and revenue tracking.
- Pro: $349/month plus $0.15 per call, also on a monthly rolling contract with 24/7 support. It adds the full integration suite, a Reporting API, and Customer Success Program access.
- Enterprise: custom pricing on application. It adds VIP support, high-volume discounting, a dedicated solutions architect, contact-center integrations, and Reporting and Config APIs. You have to contact sales for a quote.
The thing to watch is the per-call fee. At 1,000 calls a month on Essentials, the usage fees add $200 on top of the $249 base, so your real monthly cost is closer to $449 before any other add-ons. The published tiers ($249 and $349, plus custom) are the figures to plan around. Infinity's call tracking product page separately cites a "$199/month" starting figure, but the live pricing-page tiers take precedence.
Infinity alternatives
If Infinity is not the right fit, two other call tracking platforms are worth a look before we cover CallRail in depth.
Nimbata
Nimbata is a call tracking and conversation intelligence platform positioned for growth teams. It uses a per-answered-call model with tiers running from a free entry plan up to $120/month for its Agency plan. It is a lighter, lower-cost option that suits smaller teams and agencies watching their budget, though it has a smaller footprint and less enterprise depth than Infinity. If you are weighing this tier of tools, our Nimbata alternatives guide covers more comparisons.
WhatConverts
WhatConverts focuses on all-channel lead attribution, capturing calls, forms, chats, and e-commerce transactions in one report. Its plans run from a $30/month base up to $160/month for Elite, on a metered model. It is a good fit for teams that want lead attribution beyond calls, though its conversation analysis is less deep than Infinity's scorecards.
CallRail
CallRail is a lead engagement platform used by 225,000+ businesses and 7,000+ marketing agencies. It pairs call and form attribution with AI tools that help you answer and convert leads, not just measure them. For a marketer comparing Infinity, CallRail covers the same attribution job while adding a couple of capabilities Infinity does not have, and it leans toward self-serve setup and predictable entry pricing.
Why CallRail stands out:
Easier setup and faster time-to-value
CallRail is built for self-service setup, and most teams finish in under an hour with help from the AI Expert Team. You set up tracking numbers, connect your site and forms, and start seeing data without waiting on a vendor's implementation schedule. That is a contrast with Infinity's team-assisted onboarding, which spans code deployment, integration setup, and testing run by their staff.
Transparent, predictable pricing
CallRail plans start at $55/month ($50/month billed annually) and include 5 local numbers and 250 minutes, with no long-term contracts. Because the entry plan bundles numbers and minutes, you avoid the per-call usage fees that stack on top of Infinity's monthly base. You can review the full plans and pricing to map tiers to your call volume.
Marketing attribution that proves ROI
CallRail's Call Tracking ties every call back to the campaign, source, and keyword that drove it, with multi-touch reporting that shows the full path to a conversion. Premium Conversation Intelligence™ adds the analysis layer on top: it summarizes and scores calls, runs sentiment analysis, and tags conversions automatically. Call Tracking on its own includes call recording and transcription, and Premium Conversation Intelligence™ layers on the deeper insight when you need it.
"We always knew there was a better way to service advertisers, and it would all start with providing 100% transparency, and subsequently, forming a solid foundation of trust with our clients."
– Eric Wilder, Co-founder, 81 & Sunny Digital Investments Source: CallRail customer story: 81 & Sunny
AI call answering with Voice Assist
This is the biggest gap between the two. Infinity has no AI voice answering product, so a missed call stays missed. CallRail's Voice Assist answers, captures, and qualifies inbound calls 24/7 with an AI assistant, and it can be trained on your previous call data. Pricing is $95/month for 50 calls plus $1 per additional call over 15 seconds, so you pay per call rather than per minute.
The legal stat that makes the case: 52% of law firms lose business specifically because of missed calls.
Try it yourself: Start a 14-day free trial, no credit card required. Most teams finish setup in under an hour.
Verdict
The right choice comes down to where you operate and how much of the work you want the software to do for you.
When Infinity is a fit
Infinity is a strong pick for UK and European businesses that want call tracking with regional expertise and GDPR-compliant data handling. If your team needs deep, custom Conversation Analytics with scorecards at the agent, team, and company level, and you have the time to configure them, Infinity delivers that depth. It also suits performance marketers who want call quality fed back into Google Ads through Smart Match and Smart Outcomes, and who are comfortable with assisted onboarding.
When CallRail is the stronger choice
CallRail is the stronger choice if you want predictable entry pricing without per-call fees, a self-serve setup you can finish in under an hour, and AI that answers calls rather than only analyzing them after the fact. If you operate primarily in the US, lean on a wide integration ecosystem, or need Voice Assist to capture leads when no one is available, CallRail closes gaps that Infinity leaves open. For agencies juggling multiple clients, the combination of attribution, AI answering, and added insight from Premium Conversation Intelligence™ keeps more of the workflow in one place.
Get started with CallRail
Here is the short version of how the two compare.
Feature
CallRail
Infinity
Starting price
$55/month ($50/month billed annually), no long-term contracts
$249/month plus $0.20 per call
AI call answering
Voice Assist answers, captures, and qualifies calls 24/7
No AI voice answering product
Conversation insight
Call Tracking includes recording and transcription; Premium Conversation Intelligence™ adds summaries, scoring, and sentiment
Conversation Analytics with custom scorecards that require manual configuration
Setup
Self-serve, most teams live in under an hour
Team-assisted onboarding
Best for
US and agency teams wanting attribution plus AI that converts leads
UK and European teams wanting deep, custom analytics
If you operate in the UK or Europe and need deep custom analytics, Infinity earns a serious look. If you want attribution plus AI that helps you capture and convert leads, with pricing you can predict, CallRail is built for that.
Ready to see how CallRail works for your business? Start a 14-day free trial, no credit card required. Join 225,000+ businesses that use CallRail to track, analyze, and convert more leads.
