
Mixpanel
Plausible.io
Amplitude
Google Analytics
Hotjar
Fathom Analytics
umami
An open source suite of product and data tools including product analytics, feature flags, session replay, A/B testing, surveys, and more.

Plausible.io
Fathom Analytics
Simple Analytics
umami
TelemetryDeck
Mixpanel
ChartMogul
Revenue-first analytics
Which is more popular?
Based on our record, PostHog seems to be a lot more popular than DataFast. While we know about 76 links to PostHog, we've tracked only 1 mention of DataFast.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | posthog.com | datafa.st |
| Pricing | ||
| Company | Startup from the United States · 20 - 49 employees · 2020 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


For developers just starting out, PostHog is a free way to understand how your product is being used, without having to send any data to 3rd parties. For enterprise customers, one data security becomes a key concern, or B2C businesses where using a SaaS solution is unaffordable, it's typical to...
No description of DataFast yet.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
PostHog is particularly well-suited for product teams, developers, and startups that require deep insights into user interactions and need the flexibility of a self-hosted solution. It is also a good fit for organizations that prioritize data privacy and want to maintain full control over their data.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
PostHog Walk Through
More videos
No DataFast videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostHog and DataFast. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


According to BuiltWith, as of February 2024, PostHog is used on 5,169 (0.52%) of the top 1 million websites. Hotjar is used by 72,048 of the top 1 million websites. Typical PostHog users are engineers and product...
BlogBackSign inBlogThe 8 best free and open-source feature flag servicesPosted byThe best open-source feature flag tools1. PostHogWhat is PostHog?Supported librariesHow much does it cost?2. UnleashWhat is...
We have no reviews of DataFast yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Start-here: Will Google show the URL → Search Console (free). Who visited → GA4 (free standard). Product/errors → PostHog or Sentry. Is it up → UptimeRobot or Better Stack. - Source: dev.to / 3 days ago
Run eas integrations:posthog:connect and EAS CLI creates or links your PostHog project, installs the SDK and config plugin, and writes environment variables to your project and EAS. Every event PostHog captures now carries eas/update_id,... - Source: dev.to / 29 days ago
That setup is now one command. It creates your PostHog org and project, installs the SDK, adds the config plugin, and writes your keys into .env.local and your EAS environment variables for Production, Preview, and Development. You pick... - Source: dev.to / about 1 month ago
He has since turned TrustMRR into a marketplace where startups get bought and sold, and he takes a fee. In March 2026 he posted that he had finally crossed his long-standing $20,000 MRR / $1M-business goal on DataFast, 512 days after... - Source: dev.to / 3 months ago
When comparing PostHog and DataFast, you can also consider the following products.

Mixpanel is the most advanced analytics platform in the world for mobile & web.
Compare Mixpanel to PostHog or DataFast:

Plausible Analytics is a simple, open-source, lightweight (< 1 KB) and privacy-friendly web analytics alternative to Google Analytics. Made and hosted in the EU, powered by European-owned cloud infrastructure 🇪🇺
Compare Plausible.io to PostHog or DataFast:

Simple, trustworthy website analytics (finally)
Compare Fathom Analytics to PostHog or DataFast:

Chart Your Path to Growth with Digital Analytics
Compare Amplitude to PostHog or DataFast:

The privacy-first Google Analytics alternative located in Europe.
Compare Simple Analytics to PostHog or DataFast:

Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Compare Google Analytics to PostHog or DataFast: