yourapp.comSame idea, different deal
Both tools answer the question that matters: which traffic source brought the people who paid. 
DataFast is a hosted subscription. ownlytics is software you buy once and run in your own 
Cloudflare account, so the bill doesn't grow with your traffic or your number of sites. Rather not run anything? ownlytics Hosted is $9/month for 50,000 events or $19/month for 250,000, with unlimited websites on both.
| ownlytics | DataFast | |
|---|---|---|
| Pricing | Self-hosted: one-time payment of $49, lifetime updates. Hosted: $9/month for 50,000 events or $19/month for 250,000. | Subscription. Starter $9/month (10k events, 1 website), Growth $19/month (10k events, 30 websites). Higher volumes cost more; yearly billing gives two months free. |
| Hosting | Self-hosted on your own Cloudflare account (Cloudflare Workers + D1), installed with one command. Or hosted by us at ownlytics.xyz/app . | Hosted by DataFast. Nothing to run. |
| Running cost | Self-hosted: Cloudflare's free plan covers most sites (roughly 20,000 pageviews a day); above that, Workers Paid plan is $5/month, paid to Cloudflare. Hosted: included in the plan. | Included in the subscription. Over your event limit, tracking continues but you upgrade to see the dashboard. |
| Payment providers |  Stripe,  Polar,  Dodo Payments and  Creem, connected with a key. Past sales import; renewals and refunds follow by webhook. | Native Stripe,  LemonSqueezy, Polar and  Shopify integrations; guides for  Paddle, Dodo Payments, WooCommerce and more, plus a Payment API. |
| Cookies | Your choice per site: first-party cookies, cookieless, or cookieless until consent. | A visitor cookie by default, or an optional cookieless script. |
| Data retention | You choose: 30 days to forever (the default). Payments are never deleted automatically. | 3 years on Starter, 5+ years on Growth. |
| Trying it | Live demo on the home page. Self-hosted: no trial, all sales final. Hosted: monthly, cancel anytime. | 14-day free trial, no card needed. |
Switching takes one script tag
ownlytics reads DataFast's conventions, so most sites only swap the tag:
data-fast-goalattributes andwindow.datafast()calls keep working as goals.- Checkout metadata named
datafast_visitor_id/datafast_session_idis read too, so your Cloudflare account code doesn't change. - Past sales import from Stripe, Polar, Dodo or Creem on day one. Source attribution starts with the visits ownlytics tracks.
See Revenue attribution and Goals & funnels in the docs.
What you get with ownlytics
- Every Stripe, Polar, Dodo and Creem payment, renewal and refund credited to the visit that produced it. How attribution works.
- "Direct" split into typed, shared link, checkout return and in-app browsers.
- Lifetime value by first source, funnels, realtime visitors and
Telegram pings for every sale. - Your data in your own D1 database. It never touches our servers.
When DataFast is the better choice
- You want a hosted product with a long track record and a free trial. ownlytics Hosted is new.
- You take payments through LemonSqueezy, Paddle, Shopify or WooCommerce. ownlytics connects Stripe, Polar, Dodo and Creem only.
- You want to try it on real traffic for two weeks before paying.
Competitor details as of October 2026, from their public pages: datafa.st (pricing and integrations), revenue attribution guide, cookieless tracking. Prices and plans change; check the source before you decide. Spotted something out of date? Tell us and we'll fix it.
Ask your AI agent, too
Every ownlytics install has a built-in MCP server. One command connects Claude Code, Cursor, Codex, Windsurf or VS Code, and your agent answers "which post made me money?" from your own data. The same numbers are in your terminal and behind read-only API keys.
claude mcp add --transport http --scope user ownlytics https://ownlytics.xyz/api/mcp --header "Authorization: Bearer dbk_YOUR_KEY"