# OpenPLC Runtime v4 vs prom-alertmanager

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

| | OpenPLC Runtime v4 | prom-alertmanager |
|---|---|---|
| Score | 52/100 | 73/100 ✓ |
| Rank in category | #6 of 10 in IoT | #14 of 104 in Monitoring & observability |
| GitHub stars | 416 | 8 676 ✓ |
| Stars, last 30 days | — | +49 |
| Stable releases, 12 months | 10 | 11 ✓ |
| Latest release | v4.3.1 · 13 Oct 2026 ✓ | v0.34.1 · 17 Sept 2026 |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | Yes | Yes |
| License | MIT | Apache-2.0 |
| Main language | Python | Go |

## Which one should you pick?

prom-alertmanager scores 73/100 against 52/100 for OpenPLC Runtime v4, so it is the safer default.

prom-alertmanager ships more often: 11 stable releases in the past year, against 10 for OpenPLC Runtime v4.

prom-alertmanager is growing faster right now (+49 stars in 30 days).

## Details

- [OpenPLC Runtime v4](https://selfhost.directory/project/openplc-runtime) (markdown: https://selfhost.directory/project/openplc-runtime.md)
- [prom-alertmanager](https://selfhost.directory/project/prom-alertmanager) (markdown: https://selfhost.directory/project/prom-alertmanager.md)

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Source: https://selfhost.directory/compare/openplc-runtime-vs-prom-alertmanager