ActivityWatch vs Kimai
Both are self-hosted time tracking projects. This page compares how well each one is actually maintained — the part you cannot see from a feature list.
| ActivityWatch | Kimai | |
|---|---|---|
| Health score | 67/100 | 70/100 |
| Commits (11 mo) | 103 | 186 |
| Commits (last 3 mo) | 52 | 117 |
| Stars | 19k | 5k |
| Latest release | 18 Sept 2026 | 13 Sept 2026 |
| Licence | MPL-2.0 | AGPL-3.0 |
| Built with | Python | PHP |
| Typical RAM | 1 GB | 1 GB |
ActivityWatch
Automatically track how you spend time on your devices.
Maintained, but at a slower pace than the leaders in its category.
Commit activity more than 31% of tracked projects; popularity more than 87%. How this is calculated.
Commits, last 11 months
Kimai
Track work time and print out a summary of your activities on demand.
Actively maintained with regular releases.
Commit activity more than 42% of tracked projects; popularity more than 66%. How this is calculated.
Commits, last 11 months
How to read this
Everything above is measured, not opinion: commit counts and release dates come from the public repositories, and the health score ranks each project against all 1352 projects we track. Read the full method.
What this comparison deliberately does not do is tell you which has the better feature set. Maintenance health tells you which project will still be receiving security fixes in two years. Decide that first, then compare features on the projects that survive the filter.
See every option in this category: self-hosted time tracking.