PostHog
SISTRIX
| Feature | PostHog | SISTRIX |
|---|---|---|
| Pricing | Free / from $0/mo | From $99/mo |
| Free Plan | ✓ Yes | ✗ No |
| Rating | 4.5 / 5 | 4.4 / 5 |
| Best For | developers, startups, product-teams, privacy-conscious-companies | european-seo-teams, agencies, enterprise-brands, in-house-seo |
| Founded | 2020 | 2008 |
| Product Analytics | ✓ | ✗ |
| Session Replay | ✓ | ✗ |
| Feature Flags | ✓ | ✗ |
| Experiments | ✓ | ✗ |
| Surveys | ✓ | ✗ |
| Data Warehouse | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Visibility Index | ✗ | ✓ |
| Keyword Research | ✗ | ✓ |
| Competitor Analysis | ✗ | ✓ |
| Content Assistant | ✗ | ✓ |
| Link Module | ✗ | ✓ |
| Optimizer | ✗ | ✓ |
✓ PostHog Pros
- All-in-one analytics replacing multiple tools
- Generous free tier (1M events/month)
- Self-hostable for full data control
- Feature flags and experiments built-in
✗ PostHog Cons
- Can be complex to set up properly
- Self-hosting requires infrastructure maintenance
- Less polished UI than Amplitude
✓ SISTRIX Pros
- Best visibility index in Europe
- Comprehensive toolbox
- Strong competitive analysis
- Reliable historical data
✗ SISTRIX Cons
- More expensive than alternatives
- EU-focused (less US data)
- Learning curve for beginners
The Verdict
PostHog is built for developers and startups, with a focus on product-analytics and session-replay. SISTRIX targets european seo teams and agencies and leads with visibility-index and keyword-research.
On pricing, PostHog is the clear winner for budget-conscious users — starting at $0/mo compared to $99/mo for SISTRIX. That $99/mo difference adds up quickly for growing teams.
PostHog has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. SISTRIX requires a paid subscription from day one.
Feature-wise, PostHog offers broader built-in capabilities (7 features vs 6), while SISTRIX takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.