# Mailcow vs Windows ARM

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

| | Mailcow | Windows ARM |
|---|---|---|
| Score | 77/100 ✓ | 61/100 |
| Rank in category | #2 of 106 in Email | #7 of 15 in Virtualization |
| GitHub stars | 13 713 ✓ | 2 260 |
| Stars, last 30 days | +215 | — |
| Stable releases, 12 months | 16 ✓ | 10 |
| Latest release | 2026-10 · 21 Oct 2026 ✓ | v6.06 · 5 Oct 2026 |
| Setup | Advanced | Advanced |
| Official Docker image | No | Yes ✓ |
| License | GPL-3.0 | MIT |
| Main language | JavaScript | Batchfile |

## Which one should you pick?

Mailcow scores 77/100 against 61/100 for Windows ARM, so it is the safer default.

Mailcow ships more often: 16 stable releases in the past year, against 10 for Windows ARM.

Mailcow is growing faster right now (+215 stars in 30 days).

## Details

- [Mailcow](https://selfhost.directory/project/mailcow) (markdown: https://selfhost.directory/project/mailcow.md)
- [Windows ARM](https://selfhost.directory/project/windows-arm) (markdown: https://selfhost.directory/project/windows-arm.md)

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Source: https://selfhost.directory/compare/mailcow-vs-windows-arm