Pirsch
Prometheus
| Feature | Pirsch | Prometheus |
|---|---|---|
| Pricing | From $4/mo | Free only |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | privacy-focused-websites, european-businesses, bloggers, saas-companies | devops-engineers, sre-teams, kubernetes-users, infrastructure-teams |
| Founded | 2021 | 2012 |
| Pageview Tracking | ✓ | ✗ |
| Event Tracking | ✓ | ✗ |
| Goals | ✓ | ✗ |
| Utm Tracking | ✓ | ✗ |
| Server Side Tracking | ✓ | ✗ |
| Api Access | ✓ | ✗ |
| Metrics Collection | ✗ | ✓ |
| Alerting | ✗ | ✓ |
| Promql | ✗ | ✓ |
| Service Discovery | ✗ | ✓ |
| Grafana Integration | ✗ | ✓ |
| Multi Dimensional Data | ✗ | ✓ |
✓ Pirsch Pros
- No cookies required
- GDPR compliant out of the box
- Lightweight script (less than 1KB)
- Server-side tracking option
✗ Pirsch Cons
- No free plan
- Less detailed than GA4
- Limited e-commerce tracking
✓ 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
Pirsch is built for privacy focused websites and european businesses, with a focus on pageview-tracking and event-tracking. Prometheus targets devops engineers and sre teams and leads with metrics-collection and alerting.
Prometheus uses custom enterprise pricing, while Pirsch starts at $4/mo — a tangible advantage for teams with a fixed budget.
Prometheus has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Pirsch requires a paid subscription from day one.
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.