PostHog
Terraform
| Feature | PostHog | Terraform |
|---|---|---|
| Pricing | Free / from $0/mo | Free / from $0.00014/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.5 / 5 |
| Best For | developers, startups, product-teams, privacy-conscious-companies | devops-engineers, cloud-architects, platform-teams, infrastructure-teams |
| Founded | 2020 | 2014 |
| Product Analytics | ✓ | ✗ |
| Session Replay | ✓ | ✗ |
| Feature Flags | ✓ | ✗ |
| Experiments | ✓ | ✗ |
| Surveys | ✓ | ✗ |
| Data Warehouse | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Infrastructure As Code | ✗ | ✓ |
| Multi Cloud | ✗ | ✓ |
| State Management | ✗ | ✓ |
| Plan And Apply | ✗ | ✓ |
| Modules | ✗ | ✓ |
| Provider Ecosystem | ✗ | ✓ |
| Drift Detection | ✗ | ✓ |
✓ 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
✓ Terraform Pros
- Multi-cloud support with consistent workflow
- Declarative language (HCL) is readable and maintainable
- Massive provider ecosystem (3,000+ providers)
- State management tracks real infrastructure
- Terraform Cloud adds collaboration features
✗ Terraform Cons
- State file management requires careful handling
- BSL license change from open source caused controversy
- Complex modules can be hard to debug
The Verdict
PostHog is built for developers and startups, with a focus on product-analytics and session-replay. Terraform targets devops engineers and cloud architects and leads with infrastructure-as-code and multi-cloud.
Both tools come in at similar price points ($0/mo for PostHog, $0.00014/mo for Terraform), so pricing won't make the decision for you.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
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.