# abs-kosync-bridge vs Ultimate Certificate Manager

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

| | abs-kosync-bridge | Ultimate Certificate Manager |
|---|---|---|
| Score | 57/100 ✓ | 50/100 |
| Rank in category | #5 of 15 in Audiobook Management | #4 of 8 in Certificate Management |
| GitHub stars | 550 ✓ | 170 |
| Stars, last 30 days | — | — |
| Stable releases, 12 months | 21 ✓ | 4 |
| Latest release | v7.11.0 · 26 Oct 2026 | v2.246 · 27 Oct 2026 ✓ |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | AGPL-3.0 |
| Main language | Python | Python |

## Which one should you pick?

abs-kosync-bridge scores 57/100 against 50/100 for Ultimate Certificate Manager, so it is the safer default.

abs-kosync-bridge ships more often: 21 stable releases in the past year, against 4 for Ultimate Certificate Manager.

## Details

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

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Source: https://selfhost.directory/compare/abs-kosync-bridge-vs-ultimate-ca-manager