# prefect vs Ultimate Certificate Manager

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | prefect | Ultimate Certificate Manager |
|---|---|---|
| Score | 80/100 ✓ | 50/100 |
| Rank in category | #5 of 32 in Workflow Automation | #4 of 8 in Certificate Management |
| GitHub stars | 24 099 ✓ | 170 |
| Stars, last 30 days | +178 ✓ | +0 |
| Stable releases, 12 months | 17 ✓ | 4 |
| Latest release | 2.20.27 · 23 Oct 2026 | v2.246 · 27 Oct 2026 ✓ |
| Setup | Moderate ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | AGPL-3.0 |
| Main language | Python | Python |

## Which one should you pick?

prefect scores 80/100 against 50/100 for Ultimate Certificate Manager, so it is the safer default.

prefect ships more often: 17 stable releases in the past year, against 4 for Ultimate Certificate Manager.

prefect is growing faster right now (+178 stars in 30 days).

## Details

- [prefect](https://selfhost.directory/project/prefect) (markdown: https://selfhost.directory/project/prefect.md)
- [Ultimate Certificate Manager](https://selfhost.directory/project/ultimate-ca-manager) (markdown: https://selfhost.directory/project/ultimate-ca-manager.md)

## Related comparisons

- [Kestra vs prefect](https://selfhost.directory/compare/kestra-vs-prefect)

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Source: https://selfhost.directory/compare/prefect-vs-ultimate-ca-manager