# Calibre vs solidtime

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

| | Calibre | solidtime |
|---|---|---|
| Score | 83/100 ✓ | 69/100 |
| Rank in category | #1 of 19 in Ebook Management | #3 of 11 in Time Tracking |
| GitHub stars | 26 273 ✓ | 9 056 |
| Stars, last 30 days | +264 ✓ | +128 |
| Stable releases, 12 months | 18 | 20 ✓ |
| Latest release | v9.17.0 · 23 Oct 2026 ✓ | v0.22.1 · 21 Oct 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | Yes ✓ |
| License | GPL-3.0 | AGPL-3.0 |
| Main language | Python | PHP |

## Which one should you pick?

Calibre scores 83/100 against 69/100 for solidtime, so it is the safer default.

solidtime ships more often: 20 stable releases in the past year, against 18 for Calibre.

If you want the quickest setup, Calibre is easier to run; solidtime needs more configuration.

Calibre is growing faster right now (+264 stars in 30 days).

## Details

- [Calibre](https://selfhost.directory/project/calibre) (markdown: https://selfhost.directory/project/calibre.md)
- [solidtime](https://selfhost.directory/project/solidtime) (markdown: https://selfhost.directory/project/solidtime.md)

---
Source: https://selfhost.directory/compare/calibre-vs-solidtime