# Kill Bill vs Zammad

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

| | Kill Bill | Zammad |
|---|---|---|
| Score | 68/100 | 70/100 ✓ |
| Rank in category | #3 of 13 in Billing | #1 of 9 in Helpdesk |
| GitHub stars | 5 826 | 6 052 ✓ |
| Stars, last 30 days | +65 | +100 ✓ |
| Stable releases, 12 months | 7 ✓ | 0 |
| Latest release | killbill-0.24.22 · 28 Sept 2026 | — |
| Setup | Moderate ✓ | Advanced |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | AGPL-3.0 |
| Main language | Java | Ruby |

## Which one should you pick?

Zammad scores 70/100 against 68/100 for Kill Bill, so it is the safer default.

Kill Bill ships more often: 7 stable releases in the past year, against 0 for Zammad.

If you want the quickest setup, Kill Bill is easier to run; Zammad needs more configuration.

## Details

- [Kill Bill](https://selfhost.directory/project/kill-bill) (markdown: https://selfhost.directory/project/kill-bill.md)
- [Zammad](https://selfhost.directory/project/zammad) (markdown: https://selfhost.directory/project/zammad.md)

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Source: https://selfhost.directory/compare/kill-bill-vs-zammad