PostHog vs Crawl4AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Crawl4AI is completely free, while PostHog is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Product analytics
- Session replay
- Feature flags and experiments
- SQL data warehouse
- AI assistant
- Markdown output for LLMs
- Async parallel crawling
- LLM-based extraction
- Docker server
- Content filtering
| Feature | PostHog | Crawl4AI |
|---|---|---|
| Best for | Open-source product analytics suite with an AI assistant | Open-source crawler that outputs LLM-ready markdown |
| Category | Data & analytics | Data & analytics |
| Pricing model | Freemium | Free |
| Starting price | See pricing page | Free |
| Free plan | Yes | Yes, fully free |
| Made by | PostHog | Unclecode |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Crawl4AI is completely free, while PostHog is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 1M analytics events/month
- 5K session recordings
- 1M feature flag requests
- 1 project, 1-year retention
Pay-as-you-go
Usage-based after free tier
- Unlimited usage
- 6 projects
- 7-year data retention
- Per-product billing limits
Enterprise
Contact sales
- Annual plans and volume discounts
- Platform features and onboarding help
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
PostHog
- Many tools in one product
- Large free monthly allowance
- Transparent pricing
- Interface can feel crowded
- Usage costs grow with traffic
Crawl4AI
- Free and self-hosted
- Fast async crawling
- Very active project
- Requires Python skills
- You manage proxies and scaling
Which one should you choose?
Choose PostHog if you want:
- Many tools in one product
- Large free monthly allowance
- Transparent pricing
Watch out: interface can feel crowded.
Choose Crawl4AI if you want:
- Free and self-hosted
- Fast async crawling
- Very active project
Watch out: requires python skills.
PostHog vs Crawl4AI FAQ
What is the difference between PostHog and Crawl4AI?
PostHog: Open-source product analytics suite with an AI assistant. Crawl4AI: Open-source crawler that outputs LLM-ready markdown. Both are data & analytics tools.
Is PostHog or Crawl4AI cheaper?
Crawl4AI is completely free, while PostHog is freemium.
Do PostHog and Crawl4AI have free plans?
PostHog: Yes. Crawl4AI: Yes, fully free.
Who makes PostHog?
PostHog is made by PostHog, based in United States.
Who makes Crawl4AI?
Crawl4AI is made by Unclecode.
Which should I choose, PostHog or Crawl4AI?
Choose PostHog if you value many tools in one product and large free monthly allowance. Choose Crawl4AI if you value free and self-hosted and fast async crawling.