Heap
Prometheus
| Feature | Heap | Prometheus |
|---|---|---|
| Pricing | Free only | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | product-teams, growth-teams, ux-researchers, data-analysts | devops-engineers, sre-teams, kubernetes-users, infrastructure-teams |
| Founded | 2013 | 2012 |
| Auto Capture | ✓ | ✗ |
| Retroactive Analytics | ✓ | ✗ |
| Session Replay | ✓ | ✗ |
| Journey Mapping | ✓ | ✗ |
| Funnels | ✓ | ✗ |
| Retention | ✓ | ✗ |
| Metrics Collection | ✗ | ✓ |
| Alerting | ✗ | ✓ |
| Promql | ✗ | ✓ |
| Service Discovery | ✗ | ✓ |
| Grafana Integration | ✗ | ✓ |
| Multi Dimensional Data | ✗ | ✓ |
✓ Heap Pros
- Auto-capture all events
- No code required for tracking
- Retroactive analysis possible
- Session replay included
✗ Heap Cons
- Expensive at scale
- Can be data-overwhelming
- Slower than event-based tools
✓ Prometheus Pros
- Free and open-source
- Powerful query language
- Great Kubernetes integration
- Active community
✗ Prometheus Cons
- No built-in long-term storage
- Complex setup
- Steep learning curve
The Verdict
Heap is built for product teams and growth teams, with a focus on auto-capture and retroactive-analytics. Prometheus targets devops engineers and sre teams and leads with metrics-collection and alerting.
Both tools use custom enterprise pricing — you'll need to contact sales for a quote, which makes direct cost comparison difficult.
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.