# openGym vs Zero

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

| | openGym | Zero |
|---|---|---|
| Score | 81/100 ✓ | 56/100 |
| Rank in category | #1 of 11 in Fitness Tracker | #22 of 120 in AI Assistant |
| GitHub stars | 17 188 ✓ | 1 769 |
| Stars, last 30 days | +3 019 ✓ | +1 |
| Stable releases, 12 months | 12 ✓ | 10 |
| Latest release | v1.4.3 · 26 Oct 2026 ✓ | v0.11.0 · 16 Oct 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | Yes ✓ | No |
| License | AGPL-3.0 | MIT |
| Main language | JavaScript | Go |

## Which one should you pick?

openGym scores 81/100 against 56/100 for Zero, so it is the safer default.

openGym ships more often: 12 stable releases in the past year, against 10 for Zero.

If you want the quickest setup, openGym is easier to run; Zero needs more configuration.

openGym is growing faster right now (+3 019 stars in 30 days).

## Details

- [openGym](https://selfhost.directory/project/opengym) (markdown: https://selfhost.directory/project/opengym.md)
- [Zero](https://selfhost.directory/project/zero) (markdown: https://selfhost.directory/project/zero.md)

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Source: https://selfhost.directory/compare/opengym-vs-zero