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An open source suite of product and data tools including product analytics, feature flags, session replay, A/B testing, surveys, and more.

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Which is more popular?
Based on our record, PostHog seems to be more popular. It has been mentioned 74 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | posthog.com | stackfix.com |
| Pricing | — | |
| Company | Startup from the United States · 20 - 49 employees · 2020 | Startup from the United Kingdom · 1 - 9 employees · 2024 |
| 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...
Stackfix helps you compare business software in seconds. → ⚖️ Generate personalized comparison tables. No more endless Googling or building spreadsheets. Get a personalized comparison table with one click. → 💰 Compare live prices. Forget the sales calls. Stackfix is the only way to compare...
What each product offers, as listed by its team.


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
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostHog and Stackfix. 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 Stackfix yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


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 / 10 days ago
What it deliberately does not have: accounts, cloud sync, a marketplace, Or any paywall. Telemetry is opt-in, off by default, anonymous, and collects Zero content — the endpoint is configurable if you'd rather self-host PostHog. It's... - Source: dev.to / about 2 months ago
Opus, zero nudges. Realised on its own that an abandoned signup never fires identify, triangulated the anonymous session from time, platform and registration events, decoded the PostHog replay blobs, confirmed the duplicate account in... - Source: dev.to / 2 months ago
Tracking Stackfix since Dec 2024.
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