Best ToBlock Alternatives in 2026
Updated
20 platforms from calendar apps ranked against ToBlock on the same published basis.
- 1ToBlock vs Lark
- 2ToBlock vs Calendar.com
- 3ToBlock vs Teamup
- 4ToBlock vs 7shifts
- 5ToBlock vs Slotly
- 6ToBlock vs Mozilla Thunderbird
- 7ToBlock vs Microsoft Outlook Calendar
- 8ToBlock vs Proton Calendar
- 9ToBlock vs Reclaim AI
- 10ToBlock vs EGroupware
- 11ToBlock vs Notion Calendar
- 12ToBlock vs Doodle
- 13ToBlock vs Cozi
- 14ToBlock vs Google Calendar
- 15ToBlock vs Tuta Calendar
- 16ToBlock vs Fantastical
- 17ToBlock vs FlowSavvy
- 18ToBlock vs Samsung Calendar
- 19ToBlock vs TimeTree
- 20ToBlock vs DayFront
ToBlock alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Lark | 8.8 | Free plan | — | Android, API, iOS, Linux, Mac, Web, Windows |
| 2 | Calendar.com | 8.8 | Free plan | $20/mo | Android, API, Browser, iOS, Web |
| 3 | Teamup | 8.7 | Free plan | $12/mo | Android, API, iOS, Web |
| 4 | 7shifts | 8.1 | Free plan | Free | Android, API, iOS, Web |
| 5 | Slotly | 7.9 | Free plan | $0.83/mo | Android, API, Web |
| 6 | Mozilla Thunderbird | 7.6 | Free plan | Free | Android, Linux, Mac, Windows |
| 7 | Microsoft Outlook Calendar | 7.5 | Free plan | $1.67/mo | Android, iOS, Mac, Web |
| 8 | Proton Calendar | 7.4 | Free plan | Free | Android, iOS |
| 9 | Reclaim AI | 7.4 | Free plan | $10/mo | Browser, Web |
| 10 | EGroupware | 7.4 | No | €21.90/mo | Web, Linux, Windows, Mac |
| 11 | Notion Calendar | 7.3 | Free plan | Free | Android, iOS |
| 12 | Doodle | 7.3 | Free plan | $11/mo | Web |
| 13 | Cozi | 7.3 | Free plan | $3.25/mo | Android, iOS, Web |
| 14 | Google Calendar | 7.2 | No | $7/mo | Android, iOS |
| 15 | Tuta Calendar | 7.2 | Free plan | €3/mo | Android, iOS |
| 16 | Fantastical | 7.2 | Free plan | Free | iOS |
| 17 | FlowSavvy | 7.2 | Free plan | — | Android, iOS, Web |
| 18 | Samsung Calendar | 7.1 | Free plan | Free | Android |
| 19 | TimeTree | 7.1 | Free plan | $4.49/mo | Android, iOS |
| 20 | DayFront | 7.1 | No | — | API, self-hosted, Web |
Make your platform an alternative to ToBlock
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about ToBlock alternatives
What is the best alternative to ToBlock?
Lark, number 1 in calendar apps with a score of 8.8 out of 10. The others here: Calendar.com, Teamup, 7shifts and 16 more.
What is the best free alternative to ToBlock?
Lark is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to ToBlock?
Yes: Mozilla Thunderbird, EGroupware.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.