# grimmory vs Understudy

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

| | grimmory | Understudy |
|---|---|---|
| Score | 69/100 ✓ | 48/100 |
| Rank in category | #2 of 12 in Book Management | #110 of 209 in AI Agents |
| GitHub stars | 4 625 ✓ | 465 |
| Stars, last 30 days | +200 ✓ | +0 |
| Stable releases, 12 months | 19 ✓ | 0 |
| Latest release | v3.5.0 · 21 Sept 2026 | — |
| Setup | Moderate ✓ | Moderate |
| Official Docker image | Yes ✓ | No |
| License | AGPL-3.0 | MIT |
| Main language | Java | Typescript |

## Which one should you pick?

grimmory scores 69/100 against 48/100 for Understudy, so it is the safer default.

grimmory ships more often: 19 stable releases in the past year, against 0 for Understudy.

grimmory is growing faster right now (+200 stars in 30 days).

## Details

- [grimmory](https://selfhost.directory/project/grimmory) (markdown: https://selfhost.directory/project/grimmory.md)
- [Understudy](https://selfhost.directory/project/understudy) (markdown: https://selfhost.directory/project/understudy.md)

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Source: https://selfhost.directory/compare/grimmory-vs-understudy