Happenstance vs PostHog

PostHog is powerful, but requires setup and scales costs with usage. Happenstance installs in 60 seconds with predictable pricing.

At a Glance

Happenstance

  • ✓ GitHub-native (installs via PR)
  • ✓ AI-powered auto-tracking
  • ✓ Repository-based pricing (€29/mo for 5 repos)
  • ✓ Unlimited events on all plans
  • ✓ Zero configuration required
  • ✓ Built-in error tracking

PostHog

  • ✓ Open-source option available
  • ✓ Feature flags & A/B testing
  • ✓ Event-based pricing ($0.00031/event)
  • ✓ Session replay
  • ✓ Self-hosted option
  • ✓ Mature product with large community

Feature Comparison

FeatureHappenstancePostHog
Setup Time < 60s~30 min
GitHub Integration Native
Auto-Tracking AI-poweredManual setup
Event Pricing Unlimited$0.00031/event
Starting Price€29/moFree tier, then usage-based
Session ReplayComing soon
Feature FlagsRoadmap
Error Tracking Built-inVia integration
Funnel Analytics
Retention Cohorts
Self-Hosted OptionEnterprise Open source
Why Happenstance for GitHub Teams

Happenstance is built specifically for developers building on GitHub:

⚡ Instant Setup
Merge a PR, analytics start flowing. No SDK integration, no configuration files, no documentation to read.
🤖 AI Auto-Tracking
Our AI reads your code and automatically tracks the right events. PostHog requires manual instrumentation for every event.
💰 Predictable Costs
€29/mo for 5 repos, unlimited events. No surprise bills when you go viral. PostHog charges per event—10M events = $2,480/mo.
Choose Happenstance if:

✓ You want to ship analytics today, not next week

✓ You build on GitHub (your workflow stays on GitHub)

✓ You want zero surprise bills—€29/mo, unlimited events

✓ You're tired of manually instrumenting every button click

✓ You want errors + analytics in one tool (not two)

✓ You're a startup moving fast—setup in 60 seconds, not 30 minutes

✓ You want webhook auto-updates as your code evolves

Choose PostHog if:

✓ You need session replay functionality

✓ You want feature flags and A/B testing built-in

✓ You prefer open-source solutions

✓ You want to self-host your analytics

✓ You have low event volume (free tier friendly)

✓ You need a mature platform with extensive docs

✓ You want full control over your infrastructure

Pricing Comparison

Happenstance

Repository-based, unlimited events

Free: €0/mo
1 repository, unlimited events
Startup: €29/mo
5 repositories, unlimited events
Growth: €99/mo
20 repositories, unlimited events
No event limits. No surprise bills. Ever.
PostHog

Event-based pricing

Free
1M events/mo, then $0.00031/event
Scale
Usage-based, volume discounts
Example Cost
10M events/mo: ~$2,480/mo
Complex pricing. Costs scale with usage.

Ready to try Happenstance?

Set up analytics in 60 seconds. No credit card required.

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