Keitaro vs Polar Analytics

What each one actually is

Keitaro is a self-hosted click tracker and traffic-distribution system, made by Apliteni and installed on your own Linux server. You route your campaign links through it, and on top of recording every click, its cost, the conversion and the ROI, it does the media buyer's daily work: it splits traffic across landing pages and offers by rules you set on GEO, device, browser, operator and schedule, rotates offers and landers, runs A/B tests, fires server-to-server postbacks and filters bots. It has been sold for years, its own site cites more than 4,000 businesses, it runs on hardware you control, and the licence is a flat monthly fee that ignores how many clicks you push through it.

Polar Analytics is not a click tracker at all. It is a Shopify-native analytics and business-intelligence platform for direct-to-consumer brands. It connects your store, ad platforms, email and the rest of your stack, then turns the lot into one set of dashboards: blended CAC and MER, ROAS, LTV, cohorts, retention and contribution margin, editable out of the box. Under those dashboards sits a dedicated Snowflake warehouse you hold the keys to, unlimited users and unlimited historical data, plus a first-party pixel with a Lifetime ID. Its job is to stop a team reconciling Shopify, Meta, Google, TikTok and Klaviyo by hand.

That split decides most of this comparison before any single feature does. Keitaro optimizes the traffic flowing through a funnel. Polar measures the money moving through a store you own. A tool built for one is the wrong shape for the other.

The split that decides it

These two are not two takes on one job. Keitaro routes clicks; Polar reports profit. Keitaro sits in front of your traffic and decides where each click goes. Polar sits over your whole store and tells you whether the business is making money and where. A media buyer running a rotation of affiliate offers through a redirect needs the first. A Shopify brand that has outgrown native reports and a spreadsheet needs the second. Very few operators genuinely need both from one tool, and neither of these does the other's work.

So ask what you are hiring for. If the job is to route and rotate paid traffic across offers and landers, and you want the engine and the data on a box you own, that is Keitaro. If the job is to unify your Shopify orders, ad spend and email into one profit number your marketing and finance teams both trust, that is Polar. The correlated question settles the rest: are you promoting offers you do not own, or measuring a store you do? Read the Keitaro review and the Polar Analytics review and the split usually resolves itself.

What Keitaro does that Polar does not

Keitaro routes traffic, and Polar simply does not. Keitaro splits clicks across landers and offers by rule, rotates what is winning, runs A/B tests and filters bots, all in front of the funnel, with streams and filters on GEO, device, browser, operator and schedule and more than 35 parameters to slice by. Polar has no offer rotation, no rule-based distribution, no redirect engine, because it measures a store rather than steering traffic. For an affiliate or media buyer running many offers, routing is the whole job, and only Keitaro does it. Keitaro also puts the engine and the data on your own server, so your click and conversion history lives on hardware you control with retention you set, and its flat EUR 40 to 104 a month never trips a per-event fee no matter how much volume a campaign suddenly does. That flat, owned, uncapped shape is the same reason a cloud attribution platform and Keitaro barely overlap for a buyer routing offers.

What Polar does that Keitaro does not

Polar reports blended store profit in a way a click tracker cannot. It reads your Shopify orders, ad spend across Meta, Google and TikTok, email and subscriptions and reconciles the lot into CAC, MER, LTV, cohort, retention and contribution-margin dashboards a whole team can argue over, all sitting on a queryable Snowflake warehouse you can hit directly. Keitaro tells you a campaign's return; it does not tell you the profit of a business. Polar also does real attribution work at the edges: its Advertising Signals product sends conversion events server-side to Meta and Google Ads to lift Event Match Quality, and the first-party pixel with a Lifetime ID improves attribution where browser tracking breaks. It is a managed cloud platform, so there is no server on your side to keep alive. For a Shopify brand that has to defend one profit number, that dashboard is the product, and Keitaro does not produce it. It is the same measurement-first case a cross-channel platform makes against Keitaro, and Polar wins in its own lane for the same reason.

Setup, who runs it, and what neither fixes

Keitaro is a project. The docs want a clean VPS on CentOS 9 or 10 Stream with KVM, 20 GB of SSD and 4 GB of RAM or more, and the domains, SSL, backups, updates and security are yours to keep up. The sharpest reviews describe 502 errors on server-to-server conversion tracking, usually tracing to an under-provisioned box rather than the tracker itself, but on a self-hosted tool part of your uptime is your responsibility. Its routing engine also carries reputation baggage: security researchers have documented it abused in malware and cloaking campaigns, so some strict ad networks view the toolset warily. That is criminal misuse of a general routing tool, not honest tracking, but keep your redirects clean and your use compliant.

Polar asks nothing at the server level, and its honest costs sit elsewhere. It publishes no headline price and runs no free trial: the plan is tiered by your online GMV and quoted after a demo, the Shopify listing shows a Core Plan from $750 a month, and a Shopify Plus operator reported a quote near $20,000 a year, so below serious scale the cost is hard to justify. Operators who ran it also say it is a reporting and BI layer more than a deep attribution engine, and that it gets restrictive once you need messy custom attribution or business-specific nuance. If your problem is which channel actually drove a sale at scale, its real rivals are Triple Whale and Northbeam, not a click tracker. And the point both share: a tracker routes traffic where it converts and tells you where the money leaks, and an analytics platform tells you whether the store is profitable, but neither fixes a weak offer or thin margins. Fix the offer first, then pick the tool for the job you actually have. For the wider field, see the alternatives to Keitaro and the alternatives to Polar Analytics.

Keitaro publishes a flat licence that ignores your click count. Individual plans are billed yearly at EUR 40 (Starter), EUR 72 (Advanced) and EUR 104 (Expert) a month, with Team and Enterprise higher, and Keitaro lists discounts for paying up front. There is no free trial, only a public live demo, and the Linux VPS you host it on is a separate ongoing cost on top of the licence.

Polar Analytics does not publish a headline price. It is tiered by your online GMV and quoted after a demo, with no free trial or free tier on the paid platform. The Shopify App Store listing shows a Core Plan from $750 a month, and a Shopify Plus operator reported a quote near $20,000 a year. The only free look is an instant demo running on sample data.

The two prices are not really comparable, because the two tools are not. Keitaro is a flat licence for a routing engine you run yourself, plus the VPS to run it on, so what you pay is fixed and capped no matter how much traffic you push. Polar is a mid-market platform priced on the size of the store it measures, so what you pay tracks your revenue rather than your traffic. Size Keitaro against the box you would rent and the volume you would push through it, and size Polar against a demo quote for your GMV. Compare the job first; the prices only mean something once you know which tool fits.

Prices read from each vendor's own pricing page, current as of 24 September 2026.