DataFast vs Posthog-foss
PostHog FOSS is the stronger choice for teams seeking self-hosted, event-based product and web analytics with SQL analysis and control of the deployment. DataFast remains the better fit when the primary requirement is purpose-built marketing revenue attribution across traffic sources, payments, campaigns, and visitor journeys. The supplied evidence does not establish that PostHog FOSS matches DataFast’s payment-athe-
Decision guide
The practical reasons to choose either option, based on documented capabilities.
Choose Posthog-foss if
- Product teams analyzing event-based user behavior with visualizations or SQL
- Engineering teams wanting web and product analytics in a self-hosted environment
- Organizations able to operate an unsupported Docker-based analytics deployment below the documented approximate scale guidance
Stay with DataFast if
- Marketing teams need payment-linked attribution as the central analytics workflow
- Teams require documented cross-domain or web-to-app visitor journeys
- Organizations depend on documented cookieless tracking, Google Search Console attribution, Meta Ads reporting, or public dashboards and scheduled reports
Deployment and operations
PostHog FOSS is MIT-licensed and self-hostable. The documented hobby deployment runs on Linux with Docker and recommends 4 GB of memory. The maintainers state that open-source deployments should scale to approximately 100,000 events per month, recommend PostHog Cloud beyond that point, and provide no customer support or guarantees. Posthog-foss is a read-only mirror synchronized from the main repository, so issues and pull requests should be submitted there.
Feature fit
What Posthog-foss covers
- Web traffic analytics
- Revenue monitoring
- Event-based analytics
- API-based instrumentation
- MCP access
What’s different or missing
- No documented DataFast import path
- No documented payment-provider attribution workflow
- No documented persistent versus cookieless tracking modes
- No documented Search Console or Meta Ads attribution
- No documented public dashboards or scheduled reports
Project snapshot
- GitHub stars
- 696
- Contributors
- 552
- Language
- Python
- Last commit
- Aug 16, 2026
- Latest release
- Not available
Categories: Product Analytics, Web Analytics
Sources and editorial review13 linked sources
Public documentation supports this comparison. Automation assists collection and classification; editorial standards and corrections remain the responsibility of Kris.
PostHog FOSS is a read-only mirror of PostHog, with all proprietary code removed.
repository description · github.comPostHog is the open source platform for building self-driving products.
readme · github.comWeb analytics: Monitor web traffic and user sessions with a GA-like dashboard. Easily monitor conversion, web vitals, and revenue.
readme · github.comProduct analytics: Autocapture or manually instrument event-based analytics to understand user behavior and analyze data with visualization or SQL.
readme · github.comData warehouse: Sync data from external tools like Stripe, Hubspot, your data warehouse, and more.
readme · github.comSelf-hosting the open-source hobby deploy (Advanced): deploy a hobby instance in one line on Linux with Docker.
readme · github.comYou can steer it all from Slack, web, desktop (PostHog Desktop), or your own editor via the MCP.
readme · github.comProduct analytics: Autocapture or manually instrument event-based analytics to understand user behavior and analyze data with visualization or SQL.
verdict · github.comWeb analytics: Monitor web traffic and user sessions with a GA-like dashboard. Easily monitor conversion, web vitals, and revenue.
shared feature · github.comIf you want to self-host PostHog, you can deploy a hobby instance in one line on Linux with Docker (recommended 4GB memory):
deployment · github.comOpen source deployments should scale to approximately 100k events per month, after which we recommend migrating to a PostHog Cloud
deployment · github.comWe _do not_ provide customer support or offer guarantees for open source deployments.
deployment · github.comPostHog FOSS is a read-only mirror of PostHog, with all proprietary code removed. NOTE: This repo is synced automatically from the main PostHog repo. Please raise any issues and PRs there.
deployment · github.com
