# Mailu vs prometheus

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

| | Mailu | prometheus |
|---|---|---|
| Score | 69/100 | 90/100 ✓ |
| Rank in category | #8 of 106 in Email | #1 of 104 in Monitoring & observability |
| GitHub stars | 7 595 | 66 828 ✓ |
| Stars, last 30 days | +72 | +632 ✓ |
| Stable releases, 12 months | 22 ✓ | 16 |
| Latest release | 2024.06.67 · 23 Oct 2026 ✓ | v3.15.1 · 21 Oct 2026 |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | No | Yes ✓ |
| License | Other | Apache-2.0 |
| Main language | Python | Go |

## Which one should you pick?

prometheus scores 90/100 against 69/100 for Mailu, so it is the safer default.

Mailu ships more often: 22 stable releases in the past year, against 16 for prometheus.

prometheus is growing faster right now (+632 stars in 30 days).

## Details

- [Mailu](https://selfhost.directory/project/mailu) (markdown: https://selfhost.directory/project/mailu.md)
- [prometheus](https://selfhost.directory/project/prometheus) (markdown: https://selfhost.directory/project/prometheus.md)

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Source: https://selfhost.directory/compare/mailu-vs-prometheus