head to head · open source
Sentry vs prometheus-operator
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. prometheus-operator has 9,978 stars, 3,877 forks, 296 open issues and last shipped 2 days ago. Sentry leads on adoption by 349% (44,806 vs 9,978 stars). Sentry is written in Python under a custom or non-standard licence; prometheus-operator is written in Go under Apache-2.0. Sentry has attracted 11% as many forks as stars, prometheus-operator 39%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (hacktoberfest, monitoring), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Sentry | prometheus-operator | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 10.0K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 4.9K | ⑂ 3.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 45K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick prometheus-operator if
- You want the prometheus-operator feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and prometheus-operator fits your workflow better
About Sentry
Sentry is an open source debugging platform for detecting, tracing, and fixing software issues in real time. It lives in the developer infrastructure ecosystem and provides error tracking and performance monitoring across languages, frameworks, and runtime environments.
read the full Sentry overview →
About prometheus-operator
Prometheus Operator is an Apache 2.0 licensed, Go based controller that provides Kubernetes native deployment and management of Prometheus and its related monitoring components, and it is built for platform and infrastructure engineers who operate a Prometheus monitoring stack on Kubernetes clusters.
read the full prometheus-operator overview →
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Frequently asked questions
Is Sentry or prometheus-operator more popular?
Sentry has 44,806 GitHub stars and prometheus-operator has 9,978. Sentry has the larger community by that measure.
Are Sentry and prometheus-operator free?
Both are open source. Sentry has no licence declared in this registry, and prometheus-operator is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and prometheus-operator?
Sentry is written in Python and prometheus-operator in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Sentry or prometheus-operator?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose prometheus-operator if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.