June
Prometheus
| Feature | June | Prometheus |
|---|---|---|
| Pricing | Free / from $149/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.5 / 5 |
| Best For | b2b-saas, product-managers, growth-teams, startup-founders | devops-engineers, sre-teams, kubernetes-users, infrastructure-teams |
| Founded | 2021 | 2012 |
| Auto Reports | ✓ | ✗ |
| Activation Tracking | ✓ | ✗ |
| Retention Analysis | ✓ | ✗ |
| Feature Adoption | ✓ | ✗ |
| Company Profiles | ✓ | ✗ |
| Slack Alerts | ✓ | ✗ |
| Metrics Collection | ✗ | ✓ |
| Alerting | ✗ | ✓ |
| Promql | ✗ | ✓ |
| Service Discovery | ✗ | ✓ |
| Grafana Integration | ✗ | ✓ |
| Multi Dimensional Data | ✗ | ✓ |
✓ June Pros
- Auto-generated reports
- Built for B2B SaaS
- Company-level analytics
- Segment integration
✗ June Cons
- B2B SaaS focused only
- Expensive for early-stage
- Limited custom dashboards
✓ 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
June is built for b2b saas and product managers, with a focus on auto-reports and activation-tracking. Prometheus targets devops engineers and sre teams and leads with metrics-collection and alerting.
Prometheus uses custom enterprise pricing, while June starts at $149/mo — a tangible advantage for teams with a fixed budget.
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.