# Mail-in-a-Box vs SparkyFitness

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

| | Mail-in-a-Box | SparkyFitness |
|---|---|---|
| Score | 72/100 ✓ | 66/100 |
| Rank in category | #3 of 16 in Mail Server | #2 of 11 in Fitness Tracker |
| GitHub stars | 15 446 ✓ | 6 504 |
| Stars, last 30 days | +27 | +393 ✓ |
| Stable releases, 12 months | 4 | 27 ✓ |
| Latest release | v77 · 26 Sept 2026 | v1.10.0 · 29 Oct 2026 ✓ |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | No | Yes ✓ |
| License | CC0-1.0 | Other |
| Main language | Python | Typescript |

## Which one should you pick?

Mail-in-a-Box scores 72/100 against 66/100 for SparkyFitness, so it is the safer default.

SparkyFitness ships more often: 27 stable releases in the past year, against 4 for Mail-in-a-Box.

SparkyFitness is growing faster right now (+393 stars in 30 days).

## Details

- [Mail-in-a-Box](https://selfhost.directory/project/mail-in-a-box) (markdown: https://selfhost.directory/project/mail-in-a-box.md)
- [SparkyFitness](https://selfhost.directory/project/sparkyfitness) (markdown: https://selfhost.directory/project/sparkyfitness.md)

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Source: https://selfhost.directory/compare/mail-in-a-box-vs-sparkyfitness