# Flow vs Radicale

> Two self-hosted [Calendar & Contacts projects](https://selfhost.directory/calendar-contacts), compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Flow | Radicale |
|---|---|---|
| Score | 43/100 | 69/100 ✓ |
| Rank in category | #25 of 30 in Calendar & Contacts | #1 of 30 in Calendar & Contacts |
| GitHub stars | 157 | 5 155 ✓ |
| Stars, last 30 days | — | +116 |
| Stable releases, 12 months | 3 | 19 ✓ |
| Latest release | v0.7.0 · 22 Aug 2026 | v3.9.0 · 25 Oct 2026 ✓ |
| Setup | Moderate | Easy ✓ |
| Official Docker image | No | Yes ✓ |
| License | AGPL-3.0 | GPL-3.0 |
| Main language | Dart | Python |

## Which one should you pick?

Radicale scores 69/100 against 43/100 for Flow, so it is the safer default.

Radicale ships more often: 19 stable releases in the past year, against 3 for Flow.

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

Radicale is growing faster right now (+116 stars in 30 days).

## Details

- [Flow](https://selfhost.directory/project/flow) (markdown: https://selfhost.directory/project/flow.md)
- [Radicale](https://selfhost.directory/project/radicale) (markdown: https://selfhost.directory/project/radicale.md)

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Source: https://selfhost.directory/compare/flow-vs-radicale