# Apache Cassandra vs openGym

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

| | Apache Cassandra | openGym |
|---|---|---|
| Score | 74/100 | 81/100 ✓ |
| Rank in category | #8 of 38 in Databases | #1 of 11 in Fitness Tracker |
| GitHub stars | 10 126 | 16 890 ✓ |
| Stars, last 30 days | +24 | +2 721 ✓ |
| Stable releases, 12 months | 0 | 12 ✓ |
| Latest release | — | v1.4.3 · 26 Oct 2026 |
| Setup | Advanced | Easy ✓ |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | AGPL-3.0 |
| Main language | Java | JavaScript |

## Which one should you pick?

openGym scores 81/100 against 74/100 for Apache Cassandra, so it is the safer default.

openGym ships more often: 12 stable releases in the past year, against 0 for Apache Cassandra.

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

openGym is growing faster right now (+2 721 stars in 30 days).

## Details

- [Apache Cassandra](https://selfhost.directory/project/apache-cassandra) (markdown: https://selfhost.directory/project/apache-cassandra.md)
- [openGym](https://selfhost.directory/project/opengym) (markdown: https://selfhost.directory/project/opengym.md)

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Source: https://selfhost.directory/compare/apache-cassandra-vs-opengym