Cometly review

Cometly's pitch is a single sentence: tie every ad dollar to closed-won revenue. It is aimed at B2B SaaS teams tired of Meta and Google both claiming credit for the same deal, and it promises to settle the argument by measuring against the money that actually landed in Stripe. If you are reading this, the question is not what it claims. It is whether it is real, and whether you will regret buying it. The short version: it is a real, working attribution platform with paying customers and a strong G2 record, and the two things to go in clear-eyed about are that it will not show you a price until you talk to sales, and it does not offer a free trial.

What Cometly is

Cometly is a marketing attribution platform. It sits between your ad accounts and your revenue, records the full journey from the first ad click to the closed deal, and works out which campaigns, channels and creatives actually produced pipeline and paying customers. It has narrowed its focus to B2B SaaS: the product now assumes you run a CRM like HubSpot or Salesforce and a payment system like Stripe, and it is built to map ad spend to MQL, SQL, opportunity and closed-won revenue rather than to ecommerce orders.

That focus is worth noticing before you buy, because older reviews and threads still describe Cometly as a Facebook-ads and Shopify tool. The vendor's current site is explicit that it is built for B2B SaaS. If you run an ecommerce or DTC brand, that shift is the first thing to confirm on a sales call, because the tools it competes with for your money there, Triple Whale, Northbeam and Polar Analytics, are built for the store you actually run.

How it works

Three moving parts, in order. First it captures. The Comet Pixel goes on your site with a one-line install and tracks every visitor, and server-side events run alongside it so a blocked pixel or an OAuth signup flow does not drop the sale. Cometly describes this tracking as cookieless and cross-device, the point being that one person stays one person across Safari, iOS and a work laptop.

Second it attributes. Instead of handing all the credit to the last click, Cometly models the whole journey with first-touch, last-touch, linear, U-shaped and data-driven models, and writes the source, campaign and touch history onto each deal in your CRM. For a B2B sale that takes weeks and touches a whole buying committee, that pre- and post-form history is the part a CRM's own tracking usually cannot see.

Third it feeds the ad platforms back. Through the Conversion API it sends server-side, deal-stage-aware events to Meta, Google, LinkedIn, TikTok, Microsoft, Reddit and Snapchat, so the bidding algorithms optimize toward paying customers instead of raw form fills. Cometly claims Meta event match quality as high as 9.3 out of 10. On top of that sit an AI Agent that answers plain-English questions about your data, an AI Ads Manager, and audience building from your highest-LTV customers. Treat those as extras. The capture, the attribution and the CAPI feed are the substance.

The one thing it is really selling

Strip away the feature list and Cometly's core claim is narrow and specific: Stripe knows who paid, the ad platforms know who clicked, and nothing joins the two. Cometly stitches them, so a trial, a new customer, a renewal or an expansion flows back to the ad, audience and creative that started it, with MRR and LTV attached. Buyers who like it describe exactly this. One on Reddit put it plainly, saying they run Cometly to tie ad spend straight to Stripe revenue and that the story looks different once you are "tracking actual money in vs what meta says happened." Another said they used it to trace first touch through to real revenue rather than guessing off Google Analytics. That is the job a CRM report and a platform dashboard cannot do on their own.

So, is it real?

Yes, and the evidence is better than the review count suggests. Cometly is a working product with named customers, including ClickFunnels, Trainual, Design Pickle and IndeVets, whose marketing leaders are quoted on the vendor's own case-study pages. On G2, the strongest third-party signal available, it holds 4.8 out of 5 from 36 reviews, 34 of them five-star, with praise clustering on attribution accuracy, custom-event tracking and same-day support. One reviewer reported accurate tracking on over $100,000 a month in ad spend. This is not a landing page with a waitlist.

The proof thins out past G2. Trustpilot shows 3.6 from 92 reviews, more mixed, and it flags that only four came in the last year and that the sample may not be representative. There is no clear Capterra listing at all. So the picture is a good G2 record, a middling Trustpilot one, and not much long-term public discussion to triangulate against. As with any newer tool, the honest move is to lean on a live look at your own data, which brings us to the awkward part.

The two things to go in clear-eyed about

There is no public price. Cometly publishes two plans, Core and Enterprise, and no numbers next to either. Pricing is usage-based, sized to your monthly pageviews, and quoted on a call, with monthly or annual billing and roughly 20% off for paying annually. You cannot line its cost up against a competitor before you have spoken to sales, and buyers notice: one G2 reviewer titled their review "Not worth of it's price," another reported pricing changing after they signed, and a Trustpilot reviewer called it "just another tool with a bunch of complicated options, the pricing is also too high." For context, one buyer on Reddit shared that they were quoted $600 a month and judged it reasonable next to Triple Whale and Hyros. Treat that as a single data point, not a rate card.

There is no free trial. Cometly says so directly: it does not run a trial because attribution needs your CRM and ad platforms wired up before it shows anything useful, so instead it sells a paid Professional Onboarding that pairs you with a specialist. The logic is fair, but it changes your due diligence. You cannot quietly prove the tracking on your own traffic for two weeks the way you can with a tracker that offers a trial. You commit, or you at least pay to get set up, before you see it work. That makes the demo, where the vendor connects Stripe, your CRM and your ad accounts live, the moment to be demanding. Ask to see your own numbers, not a canned dashboard.

The caveat that applies to every tool like this

No attribution platform is the truth, and the honest ones say so. Cometly runs its own models, and its totals will not perfectly match Meta, Google, GA4 and your bank all at once, because nothing does. Experienced buyers treat these tools as directional, a better basis for deciding where the next dollar goes, not a precise ledger. That only holds if your inputs are clean: without disciplined UTMs and tidy CRM stages, Cometly becomes another set of numbers to argue with rather than a source of truth. A couple of reviewers also flagged documentation that lagged behind the actual app. Budget setup time, and reconcile against a second source before you move real budget.

Who should buy it, and who should not

Cometly fits a B2B SaaS team spending enough on paid ads that attribution errors cost real money, that already runs a CRM and Stripe, and that is comfortable with sales-led, usage-based pricing and no trial. If tying closed-won revenue back to the campaign that produced it is the decision you keep getting wrong, it is built precisely for that, and the G2 record says it does the job.

Look elsewhere if you need to compare pricing before a sales call, if a free trial is a condition of buying, or if you are a smaller ecommerce or DTC brand wanting a simple profit-and-attribution dashboard, where Triple Whale or Polar Analytics fit the store you run better than a B2B SaaS tool will. And if you spend under roughly $30,000 a month, clean UTMs, GA4 and your platforms' own reporting will likely do the job before any of these earns its place. For everyone else, the smart way in is the same as with any tool whose public proof is still thin: make the live demo show your own data, and hold the verdict until it does.