# Understudy vs Unison

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

| | Understudy | Unison |
|---|---|---|
| Score | 48/100 | 65/100 ✓ |
| Rank in category | #110 of 209 in AI Agents | #2 of 15 in File Sync |
| GitHub stars | 465 | 5 559 ✓ |
| Stars, last 30 days | +0 | +65 ✓ |
| Stable releases, 12 months | 0 | 2 ✓ |
| Latest release | — | v2.54.0 · 1 May 2026 |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | No | No |
| License | MIT | GPL-3.0 |
| Main language | Typescript | OCaml |

## Which one should you pick?

Unison scores 65/100 against 48/100 for Understudy, so it is the safer default.

Unison ships more often: 2 stable releases in the past year, against 0 for Understudy.

Unison is growing faster right now (+65 stars in 30 days).

## Details

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

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