Best Killendar Alternatives in 2026
Updated
20 platforms from calendar apps ranked against Killendar on the same published basis.
- 1Killendar vs Lark
- 2Killendar vs Calendar.com
- 3Killendar vs Teamup
- 4Killendar vs 7shifts
- 5Killendar vs Slotly
- 6Killendar vs Mozilla Thunderbird
- 7Killendar vs Microsoft Outlook Calendar
- 8Killendar vs Proton Calendar
- 9Killendar vs Reclaim AI
- 10Killendar vs EGroupware
- 11Killendar vs Notion Calendar
- 12Killendar vs Doodle
- 13Killendar vs Cozi
- 14Killendar vs TimeTree
- 15Killendar vs Google Calendar
- 16Killendar vs Tuta Calendar
- 17Killendar vs Fantastical
- 18Killendar vs FlowSavvy
- 19Killendar vs Trevor AI
- 20Killendar vs Samsung Calendar
Killendar 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 | TimeTree | 7.3 | Free plan | $3.75/mo | Android, iOS, Web |
| 15 | Google Calendar | 7.2 | No | $7/mo | Android, iOS |
| 16 | Tuta Calendar | 7.2 | Free plan | €3/mo | Android, iOS |
| 17 | Fantastical | 7.2 | Free plan | Free | iOS |
| 18 | FlowSavvy | 7.2 | Free plan | — | Android, iOS, Web |
| 19 | Trevor AI | 7.2 | Free plan | $0.42/mo | Web |
| 20 | Samsung Calendar | 7.1 | Free plan | Free | Android |
Make your platform an alternative to Killendar
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Killendar alternatives
What is the best alternative to Killendar?
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 Killendar?
Lark is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to Killendar?
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.