datafa.st popularized revenue-first analytics for founders. DataFast.app is a small entry product for founders validating their first acquisition channel. datafa.st is the mature choice when your attribution workflow needs broader integrations, funnels, and journeys.
5,000 events/month free. No credit card required.
| Feature | DataFast.app | datafa.st |
|---|---|---|
| Revenue Attribution | Built-in payment attribution | Built-in payment attribution |
| Core Analytics Wedge | Traffic source to revenue | Traffic source to revenue |
| Free Tier | 5,000 events/month free | 14-day free trial |
| Starting Paid Plan | $5/month | $9/month |
| Vietnamese Founder Angle | Localized pages for Vietnamese startup search intent | Global-English positioning |
| Self-Hostable | Yes, open-source | Hosted SaaS |
| Privacy-Friendly Tracking | Cookieless by default | Default script uses cookies; cookieless option available |
| Payment Providers | Stripe and LemonSqueezy | Stripe, LemonSqueezy, Polar, Shopify, and Payment API |
| Best Stage | Early founders validating their first acquisition channel | Growing teams that need a mature attribution platform |
The job is the same: show which marketing channels create revenue. DataFast.app stays focused on the small founder use case of traffic, campaigns, pages, and payments. datafa.st has a broader hosted product with more mature feature coverage.
The free tier is designed to answer one question: can this tool attribute a real payment on your site? The $5 Founder plan is for keeping that signal once it becomes useful. datafa.st is a natural next step when a larger workflow justifies it.
Many Vietnamese founders do not search for analytics tools in the same way global English buyers do. DataFast.app can capture searches like “cong cu analytics doanh thu cho startup” and “do kenh marketing ra doanh thu” with localized copy instead of relying only on broad English positioning.
No. DataFast.app is an entry product for founders validating their first acquisition channel. datafa.st is the better fit when you need its broader integrations, funnels, journeys, mobile apps, and mature workflow.
Yes, the core wedge is the same: connect traffic sources to real revenue so founders can see which campaigns, referrals, pages, and channels create paying customers instead of only pageviews.
Because datafa.st is the reference product for revenue-first analytics. This page helps founders choose based on their current stage instead of pretending the products have equal maturity.
DataFast.app can target Vietnamese founders searching in Vietnamese for revenue analytics, marketing attribution, and startup analytics. datafa.st primarily serves the global English market.
Choose datafa.st if you want Marc Lou's mature hosted product, broader payment-provider coverage, mobile apps, and the current official feature set around funnels, journeys, and live visitor intelligence.
Choose DataFast.app while you are validating whether one source can create paying customers. Graduate to a broader platform when funnels, journeys, mobile apps, and more payment providers become important.