CallRail vs WhatConverts vs CallTrackingMetrics: Which Is Best for Lead-Gen Businesses?
- Jesse Heslinga
- 50 minutes ago
- 10 min read
If phone calls are part of your lead gen, call tracking is not optional. Without it, you are running Google Ads blind. You know you paid for clicks, but you do not know which campaign drove the call, which keyword earned its cost, or whether the caller ever became a customer.
Three tools come up more than any others in this conversation: CallRail, WhatConverts, and CallTrackingMetrics (CTM). At the surface they all solve the same problem. The differences underneath point different tools at different teams. I have set up all three in client accounts and I have no stake in which one you pick, so this is the honest split.
The Short Answer
CallRail is the default choice for a single service business that wants clean, reliable call tracking tied to Google Ads without much complexity.
WhatConverts is built for PPC agencies and in-house teams who need to report on lead quality, not just lead volume.
CallTrackingMetrics makes sense when you also need call center features: routing, IVR, agent scoring, outbound calling.
For most lead-gen businesses, the real choice is between CallRail and WhatConverts. CTM is solving a different problem.
The honest answer: it depends on who is reading the data
Pick the tool that fits how you actually use the data. Feature count is a poor proxy for fit.
A single-location roofing company that wants to know which Google Ads campaign drove a call does not need agency-grade lead reporting. CallRail handles that cleanly.
A dental group running five locations, with an agency showing the owner a monthly report on lead quality by location, needs more than that. WhatConverts was built for that situation.
CallTrackingMetrics adds a third lane entirely. It is for operations that need to route inbound calls to the right department, score the agents answering them, and track which ads drove those calls, all from one platform. That is a contact center tool with tracking built in.
The question to ask first: are you tracking calls to optimise your own Google Ads account, or are you tracking and reporting lead quality to a client or to senior management?
Pro Tip: Before picking a tool, write down who will read the reports and what question they need answered. "Which keyword drove this call?" is a different question from "which leads this week turned into booked jobs?" The tools that answer those questions best are not the same tool.
How they actually work
All three use the same underlying mechanic: dynamic number insertion (DNI). A snippet of JavaScript on your website swaps the visible phone number depending on where the visitor came from. A Google Ads visitor sees a different number than an organic visitor or a direct visitor. When they call, the tool logs the source, records the call, and sends a conversion signal back to Google Ads.
CallRail built its name on this mechanic. Setup is clean: install the snippet, create tracking number pools for each traffic source, connect to Google Ads, and your campaigns are logging calls as conversions within a few hours. The Google Ads integration pushes call conversions directly into the platform so Smart Bidding can use them. Higher-tier plans add AI-powered conversation intelligence (transcription, call tagging by outcome) and form tracking. For a deeper look at the mechanics of tracking phone calls from Google Ads, I've written a step-by-step breakdown separately.
WhatConverts tracks calls, form fills, live chat conversations, and e-commerce transactions in one place. The attribution layer is more detailed: you see each specific lead, where it came from down to the keyword, whether a human marked it as qualified or junk, and what happened to it downstream. That last piece is unusual. Most tracking tools stop at the conversion event. WhatConverts lets you qualify leads inside the platform and then feed only the good ones back to Google as conversion signals. For agencies showing clients a monthly lead report, this is the level of detail that makes the retainer defensible.
CallTrackingMetrics (recently rebranded as CTM) does everything the other two do, then adds outbound dialling, IVR call routing, agent scoring, and ACD features on top. If you need to route inbound calls to the right department and track which ad drove each one, CTM handles all of it. It is more complex to set up and more expensive as a result.
What the numbers say
All three charge a base monthly fee plus usage (phone numbers and call minutes) billed on top. Real monthly costs typically run 1.5x to 2x the advertised base once actual call volume is factored in.
CallRail | WhatConverts | CallTrackingMetrics | |
Entry plan | $50/month | $30/month | $79/month |
Mid-tier | $100/month | $60-$100/month | $179/month |
Full-featured | $195/month | $160/month | $329/month |
Agency plans | No dedicated tier | $500-$1,250/month | Enterprise from $1,999/month |
Free trial | 14 days | 14 days | First month free |
Included in base | 5 numbers + 250 min | $30 usage credit | Metered on top |
Sources: CallRail.com, WhatConverts.com, CallTrackingMetrics.com pricing pages (July 2026). Directional; confirm with the vendor before signing up.
WhatConverts has the cheapest entry point but can surprise with overage fees in a busy month. CallRail is more predictable once you know your call volume. CTM is the most expensive at every tier, by a meaningful margin.
Where they actually split: Google Ads attribution quality
Pricing differences are easy to read. The real difference is how each tool feeds call data back into Google Ads and what you can do with it.
CallRail sends call conversions directly to Google Ads. You define which calls count (minimum call duration, specific outcomes), and those fire as conversion events. Smart Bidding uses them. You can see call data by campaign, ad group, and keyword inside CallRail. For a single account with a single advertiser, this works cleanly.
WhatConverts goes further on the attribution side. It captures the full lead journey: keyword, ad, device, landing page, and what happened next. You can mark leads as qualified or junk inside the platform, then choose to send only qualified leads back to Google as conversions. That signal quality matters more than most people realise. Sending every call as a conversion, including two-second hangups and spam calls, trains Smart Bidding on noise and can quietly raise your cost per lead over time without an obvious cause.
In accounts where call tracking was set up but every inbound call was being counted as a conversion, cleaning up the signal, by setting a minimum call duration and excluding obvious junk, consistently changes what Smart Bidding bids toward. The algorithm was optimising for calls. After the fix, it starts optimising for the right calls. That shift often shows up faster than people expect.
CallTrackingMetrics has a Google Ads Direct Connect integration rated 4.7 out of 5 on G2. It pushes conversion data at campaign, ad group, and keyword level, and the API is more flexible than CallRail's for custom integrations. The trade-off is setup complexity. Businesses using CTM purely for call attribution will find it more involved than necessary.
Keep in Mind: Smart Bidding learns from the quality of conversion signals, not just the volume. A 90-second call from a genuine buyer is worth far more to the algorithm than ten three-second hangups. Every tool lets you set a minimum call duration before a call counts as a conversion. Set it. Most accounts that have never touched this setting are over-reporting.
CallRail vs WhatConverts vs CallTrackingMetrics, side by side
Dimension | CallRail | WhatConverts | CallTrackingMetrics |
Entry price | $50/month | $30/month | $79/month |
Setup complexity | Low | Low to medium | Medium to high |
Lead types tracked | Calls, forms, texts | Calls, forms, chat, e-com | Calls, texts, forms |
Lead quality reporting | Basic | Detailed, in-platform | Moderate |
Google Ads integration | Strong | Strong, more granular | Strong, more complex |
Agency/multi-account | Limited | Built for it | Available, complex |
Contact center features | None | None | IVR, routing, outbound |
Best for | Single business, clean setup | PPC agencies, multi-lead-type reporting | Call center plus tracking combined |
CallRail wins on ease and brand recognition. WhatConverts wins on lead-quality reporting for Google Ads use. CTM wins when you need call operations on top of tracking.
When CallRail wins
You manage Google Ads for a single business and need clean, reliable call tracking without extra complexity.
Your reporting is straightforward: which campaign or keyword drove the call, and did it last long enough to count.
You use other tools like HubSpot, Salesforce, or Slack and want clean native integrations. CallRail has over 50.
Your monthly call volume is predictable enough that you can estimate usage costs in advance.
Call tracking is one line item in a straightforward tech stack, not a platform to build operations around.
Verdict: CallRail is the right default for a service business that wants call tracking tied to Google Ads, set up in an afternoon with no learning curve.
When WhatConverts wins
You are an agency managing Google Ads for clients and need to show them more than "we got 47 calls this month." You need to show which calls were qualified, which keywords drove them, and what the close rate looked like.
You track leads across multiple channels: calls, web forms, and live chat, and you need unified attribution in one place.
You want to qualify leads inside the platform and send only clean conversion signals to Google Ads, rather than every inbound call regardless of quality. Junk calls pollute your conversion data more than most advertisers realise.
You manage multiple client accounts and need an agency plan that handles billing and reporting cleanly across all of them.
Your clients or management ask about lead quality, not just lead count.
Verdict: WhatConverts is the right tool when you need to report on what happened to a lead after it came in, not just that a call happened. That is a meaningfully different product from CallRail.
Common mistake: Counting every inbound call as a conversion. A three-second call from a spam bot costs the same Google Ads budget as a ten-minute call from a serious buyer, but they train Smart Bidding in completely opposite directions. Set a minimum call duration (60 to 90 seconds is a solid starting point) and use lead qualification to filter obvious junk before the signal goes back to Google.
When CallTrackingMetrics wins
Your business handles high inbound call volume and needs to route calls to the right department or agent automatically.
You want to score and coach the people answering calls, not just track where the calls came from.
You already run outbound calling and want one platform for the full operation.
The scale and operational complexity of CTM is justified by what your team does on the phones every day.
For most lead-gen businesses running Google Ads, this is not the right fit. CTM is a contact center platform that includes call tracking. Those are two different products aimed at different problems. Use it when you genuinely need both.
Verdict: CTM earns its cost when call operations are as important as call attribution. If attribution is all you need, CallRail or WhatConverts will get there for less.
Common mistakes
Picking the tool with the most brand recognition without asking what you actually need to report on. Name recognition is not a feature.
Treating all inbound calls as equal conversions. Duration filtering and lead qualification are the difference between training Smart Bidding on real buyers and training it on noise.
Installing the tracking snippet on the main website but forgetting the landing pages. Google Ads traffic often lands on a separate URL. If the DNI snippet is not there, the attribution breaks.
Signing up for the entry plan and not accounting for usage overages in a busy month. Run three months of historical call volume through the pricing calculator before committing.
Setting up call tracking and never listening to the recordings. A monthly spot-check of what your "conversions" actually sound like is one of the cheapest improvements you can make to an account.
How I Handle This for Lead-Gen Businesses
For a single-location service business managing their own Google Ads, CallRail is almost always the right call. It is reliable, the Google Ads integration works cleanly, and it does not add complexity they will not use.
For a client I manage on retainer, WhatConverts gives me what I need: lead-level attribution by keyword, the ability to mark junk leads before they corrupt the conversion data, and a report that shows real outcomes rather than just call counts. That reporting is part of what makes the relationship worth it for the client.
I have no financial relationship with either tool. This is what has worked in practice.
Not sure if your call tracking is actually feeding good data back to Google Ads? If you've been running Google Ads with call tracking set up, a second set of eyes is worth ten minutes. I'll look at your conversion actions, how calls are being counted, and whether the signal going to Smart Bidding matches your real buyers, and tell you straight whether your setup is clean or leaking.
Frequently Asked Questions
Is CallRail or WhatConverts better for Google Ads?
Both integrate directly with Google Ads and send call conversions back to the platform. WhatConverts gives you more control over lead quality filtering, which produces better conversion signals for Smart Bidding. For a single account with basic needs, CallRail works well. For agency use or when lead quality matters as much as volume, WhatConverts is the stronger choice.
How much does call tracking software cost for a service business?
WhatConverts starts at $30/month, CallRail at $50/month, and CallTrackingMetrics at $79/month. Usage costs (phone numbers and call minutes) are billed on top. Most single-location service businesses end up paying $75 to $150/month all-in on CallRail or WhatConverts once real call volume is factored in.
Can I track form fills and calls in the same platform?
Yes, all three handle this to varying degrees. WhatConverts has the most complete multi-channel tracking: calls, forms, live chat, and e-commerce in one unified report. CallRail tracks calls and forms on its higher-tier plans. CallTrackingMetrics focuses primarily on calls and texts.
Do I need call tracking if I already use Google Ads call extensions?
Yes. Google's built-in call extensions give you basic call metrics inside Google Ads, but they do not tell you what happened on the call, which keyword drove it, or whether the caller became a customer. A dedicated call tracking tool adds call recording, transcription, lead qualification, and cleaner conversion signals for Smart Bidding.
Is CallTrackingMetrics worth it for a small agency?
CTM is a strong platform but more complex and more expensive at entry level than CallRail or WhatConverts. Small agencies typically get better value from WhatConverts, which has dedicated agency plans and is built around the PPC reporting workflow. CTM makes more sense at scale or when contact center features are genuinely needed.
Should I standardise on one call tracking tool across all my clients?
If you are an agency, yes. Standardising on one tool makes setup and reporting much faster. WhatConverts is what most PPC agencies settle on because of the agency billing structure and multi-account reporting. That said, some clients have existing contracts with a tool, and switching mid-campaign can break historical attribution. Check before you move anyone over.
What is dynamic number insertion and why does it matter for Google Ads?
Dynamic number insertion (DNI) is the mechanic all three tools use. A snippet of code on your website swaps the phone number a visitor sees based on where they came from: Google Ads visitor, organic visitor, or direct. This is what makes keyword-level call attribution possible. Without it, all you know is that a call came in. With it, you know exactly which ad and keyword drove it.
About the author
Jesse Heslinga | Google Partner | 7+ Years Google Ads | Lead-Gen Expert
I run Google Ads for lead-gen service businesses at Groove Media across clinics, home services, and professional services, working with clients directly, no account-manager layer. I build every account around one question: is this spend turning into real customers, not just cheap form fills?
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