StackDataFast
An analytics tool that ties each visitor to a payment provider so the dashboard shows revenue per marketing channel, aimed at solo SaaS founders on Stripe.
What it actually does
DataFast is a traffic dashboard built around revenue attribution: it connects visitors to Stripe (and other providers like Lemon Squeezy, Polar, and Shopify) so you see which marketing channels actually bring paying customers, not just clicks.
It exposes an MCP server plus an API and CLI, which lets AI coding tools query your analytics directly, a natural fit for an AI-heavy solo workflow. Pricing scales on an event-volume slider, and the Growth plan covers a large number of sites and team members for a portfolio of projects.
It is a young, single-maintainer product with no free tier and no self-host option, and the entry plan blocks dashboard access once you exceed your event allowance, so it is best sized one tier above expected traffic before a launch.
DataFast vs its main rivals
The tools people actually weigh against DataFast: Plausible, Fathom, PostHog. Same criteria for every column, including where DataFast loses.
 Plausible |  Fathom |  PostHog | ||
|---|---|---|---|---|
Pricing & access | ||||
| Free tier | NoNo (14-day trial) | NoNo | NoNo | Yes1M events |
| Starting price | $9/mo | $9/mo | $15/mo | $0 usage-based |
| Open source / self-host | NoNo | YesAGPL | NoNo | YesYes |
Revenue & attribution | ||||
| Stripe revenue attribution | YesNative | YesEcommerce (Business) | NoNo | YesPartial |
| Revenue per channel | YesYes | YesPartial | NoNo | YesPartial |
Analytics depth | ||||
| Traffic dashboard | YesYes | YesYes | YesYes | YesYes |
| Session replay | NoNo | NoNo | NoNo | YesYes |
| Product analytics / funnels | YesPartial | YesPartial | NoNo | YesYes |
Developer & API | ||||
| REST API | Paid | Paid | Free | Free |
| MCP server | Paid | No | No | Free |
Scaling & limits | ||||
| Included events (entry) | 10k | 10k | 100k | 1M |
| Sites / team (Growth) | 30 / 30 | 3 / 3 (Growth) | 50 sites | 6 projects |
| Data retention | 3-5 yr | 3+ yr | Forever | 7 yr |
- Purpose-built to tie each visitor to Stripe revenue, so you see revenue per channel rather than raw pageviews
- MCP server plus API and CLI let AI tools query your analytics directly
- Growth at $19/mo includes 30 sites and 30 team members, generous for a portfolio
- Starter's 10k events/mo is tight and overage blocks dashboard access until you upgrade, so one launch day can lock you out
- Young single-maintainer product, so longevity and support depth are a bet versus long-established tools
- No free tier and no self-host option, unlike several rivals in the category
Pay less for it
4 ways foundPaying yearly gives 2 months free versus monthly billing
14-day trial with no credit card before paying
$19/mo Growth covers 30 sites and 30 team members, replacing several single-site subscriptions
Plausible — Same $9 entry price for a simple traffic dashboard, with an open-source self-host path, if you do not need Stripe revenue attribution
StackTracker tracks what you actually pay for DataFast and every other tool, flags overpayment, and shows the dollars you would save by switching.
Is it the right tool for you
- You are a solo SaaS founder on Stripe who cares about revenue per channel
- You want an MCP server and API so AI tools can query analytics
- You run a portfolio and want many sites and seats on one Growth plan
- You only need pageview counts → use Plausible
- You need a free tier → use Umami
- You need product analytics or session replay → use PostHog
Track what DataFast and the rest of your stack cost
StackTracker adds up every subscription, plus your hours, so you see the real number.
Prices and limits last verified 2026-07-20.