Work · alternatives · 2026

24 alternatives to Automatic out-of-office calendar

Just mark your calendar as OOO, we take care of the rest

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Automatic out-of-office calendar launched in 2020; newer entries below may have overtaken it.

1. 1
   Clockwise▲608

   Making your calendar work for you.

   2019 · getclockwise.com · its alternatives →

2. 2
   Snoooz▲493

   Let AI manage your Out-of-Office

   2023 · snoooz.ai · its alternatives →

3. 3
   Clockwise for Slack▲148

   Tame the chaos of work

   2019 · getclockwise.com · its alternatives →

4. 4
   OOO▲75

   Leave automatic out of office reply in Slack

   2020 · its alternatives →

5. 5
   No-Meeting Day by Clockwise▲121

   Automatically create and protect your team's no-meeting day

   2020 · getclockwise.com · its alternatives →

6. 6
   Clockwise Prism▲543

   A first-of-its-kind intelligent calendar

   2024 · getclockwise.com · its alternatives →

7. 7
   Undock▲281

   Auto-complete for the calendar

   2022 · undock.com · its alternatives →

8. 8
   Timely▲176

   Pull your calendar availability in 3 seconds

   Jul 2026 · trytimely.co · its alternatives →

9. 9
   Nook Calendar▲312

   Own your time, reclaim your attention

   2022 · its alternatives →

10. 10CD
    Clockwise – Defragment your calendar, get more work done▲26

    A new chapter for our team, and an important update for our customers.

    2019 · getclockwise.com · its alternatives →

11. 11
    Clockwise – Private Beta▲83

    The calendar assistant for teams that need to get stuff done

    2019 · getclockwise.com · its alternatives →

12. 12
    Flowlance▲455

    Automatic payments from your calendar

    2023 · its alternatives →

13. 13
    Clockwise▲202

    Stay in sync across time zones

    2024 · apps.apple.com · its alternatives →

14. 14
    CalendarPlusAI▲203

    Shared calendar no login Collaborate with friends and teams!

    2024 · bcalendar.com · its alternatives →

15. 15
    Out of Office Email Generator▲120

    Personalized, witty OOO replies for guilt-free vacationing.

    2018 · ooogenerator.com · its alternatives →

16. 16
    Calendar▲257

    Smart calendar that makes teams more productive

    2020 · its alternatives →

17. 17
    Time Off Calendar▲102

    Accurate and simple PTO calendar

    2021 · tmetric.com · its alternatives →

18. 18
    Notion Calendar Sync▲283

    2-way sync between Notion and your Google Calendar

    2021 · 2sync.com · its alternatives →

19. 19
    An app that helps engineers fight back against pointless meetings▲162

    Clockwise is a meeting cost calculator designed to encourage more efficient meetings. - syncfast/clockwise

    2021 · github.com · its alternatives →

20. 20
    Calendly 2.0▲197

    Easily schedule meetings without the back-and-forth emails

    2021 · calendly.com · its alternatives →

21. 21
    OI Calendar▲78

    Encrypted, decentralized alternative to Google calendar

    2019 · cal.openintents.org · its alternatives →

22. 22
    Chronock▲110

    Scheduling and calendar sync, all in one

    Aug 2026 · chronock.ai · its alternatives →

23. 23
    Clockwise Links by Clockwise▲112

    Find the best time for a meeting, not just the next time

    2022 · getclockwise.com · its alternatives →

24. 24
    Azendoo Calendar▲143

    Todos meet calendar to manage your team deadlines

    2015 · azendoo.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →