Best Proton Calendar Alternatives in 2026
Updated
20 platforms from calendar apps ranked against Proton Calendar on the same published basis.
- 1Proton Calendar vs Calendar.com
- 2Proton Calendar vs Teamup
- 3Proton Calendar vs Cozi
- 4Proton Calendar vs TimeFinder
- 5Proton Calendar vs TimeTree
- 6Proton Calendar vs Microsoft Outlook Calendar
- 7Proton Calendar vs Lark
- 8Proton Calendar vs Reclaim AI
- 9Proton Calendar vs FlowSavvy
- 10Proton Calendar vs Tweek
- 11Proton Calendar vs Calendars by Readdle
- 12Proton Calendar vs Amie
- 13Proton Calendar vs Fantastical
- 14Proton Calendar vs Trevor AI
- 15Proton Calendar vs FamilyWall
- 17Proton Calendar vs Skej
- 18Proton Calendar vs Informant
- 19Proton Calendar vs Sorted³
- 20Proton Calendar vs 7shifts
- 21Proton Calendar vs Tilly
Proton Calendar alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Calendar.com | 9.3 | Free plan | $20/mo | Android, API, Browser, iOS, Web |
| 2 | Teamup | 9.2 | Free plan | $12/mo | Android, API, iOS, Web |
| 3 | Cozi | 9.2 | Free plan | $3.25/mo | Android, iOS, Web |
| 4 | TimeFinder | 9.2 | Free plan | Free | Android, iOS, Mac, Web, Windows |
| 5 | TimeTree | 9.1 | Free plan | $3.75/mo | Android, iOS, Web |
| 6 | Microsoft Outlook Calendar | 9.0 | Free plan | $1.67/mo | Android, iOS, Mac, Web |
| 7 | Lark | 9.0 | Free plan | — | Android, API, iOS, Linux, Mac, Web, Windows |
| 8 | Reclaim AI | 9.0 | Free plan | $10/mo | Browser, Web |
| 9 | FlowSavvy | 9.0 | Free plan | — | Android, iOS, Web |
| 10 | Tweek | 9.0 | Free plan | $4.17/mo | Android, iOS, Mac, Web |
| 11 | Calendars by Readdle | 8.9 | Free plan | $1.67/mo | iOS, Mac |
| 12 | Amie | 8.9 | Free plan | Free | iOS, Mac, Windows |
| 13 | Fantastical | 8.8 | Free plan | Free | iOS |
| 14 | Trevor AI | 8.8 | Free plan | $0.42/mo | Web |
| 15 | FamilyWall | 8.7 | Free plan | $3.75/mo | Android, iOS, Web |
| 17 | Skej | 8.6 | Free plan | $15/mo | Web |
| 18 | Informant | 8.5 | Free plan | — | Android, iOS |
| 19 | Sorted³ | 8.5 | Free plan | $14.99/mo | iOS, Mac |
| 20 | 7shifts | 8.5 | Free plan | Free | Android, API, iOS, Web |
| 21 | Tilly | 8.5 | Free plan | $5/mo | iOS, Mac, Web |
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Questions about Proton Calendar alternatives
What is the best alternative to Proton Calendar?
Calendar.com, number 1 in calendar apps with a score of 9.3 out of 10. The others here: Teamup, Cozi, TimeFinder and 16 more.
What is the best free alternative to Proton Calendar?
Calendar.com is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.