AI · alternatives · 2026

24 alternatives to CalUnity

All your Google, Apple & Microsoft calendars in one free app

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Google Calendar▲413

   Spend less time managing your day, now on iOS

   2015 · gmail.googleblog.com · its alternatives →

2. 2
   Cal.com Companion Apps▲635

   Native iOS & Android App + Browser Extensions for scheduling

   Jan 2026 · cal.com · its alternatives →

3. 3
   Meety 2.0▲113

   Google Cal in your menu bar & join meetings in one click

   Jan 2026 · getmeety.app · its alternatives →

4. 4
   Plan▲603

   A beautiful organizer that integrates into your calendar

   2015 · getplan.co · its alternatives →

5. 5
   Notion Calendar Sync▲283

   2-way sync between Notion and your Google Calendar

   2021 · 2sync.com · its alternatives →

6. 6
   Button for Google Calendar™▲525

   See your daily schedule and join meetings in one-click.

   2021 · manganum.app · its alternatives →

7. 7
   OneCal▲125

   Synchronise Outlook and Google Calendars

   2023 · onecal.io · its alternatives →

8. 8
   SavvyCal for iCloud▲293

   Scheduling links for iCloud, plus Google, Outlook, Fastmail

   2021 · savvycal.com · its alternatives →

9. 9
   hora Calendar▲132

   The Mac calendar Google never built. Fast, native, private — designed for people who find Apple Calendar too limited and everything else too much.

   Jun 2026 · horacal.app · its alternatives →

10. 10
    Nook Calendar▲312

    Own your time, reclaim your attention

    2022 · its alternatives →

11. 11
    Uniteable (2017)▲107

    Take your meetings to task!

    2018 · uniteable.io · its alternatives →

12. 12
    Woven Calendar for iPad▲91

    Calendar with built-In scheduling & analytics for iPad

    2020 · its alternatives →

13. 13
    I built an open source web calendar inspired by the Google calendar▲232

    I love the looks and UX of the Google calendar. But I wanted to have a version I could use more freely in my own projects, still looking similar to the one from Google.

    2024 · schedule-x.dev · its alternatives →

14. 14
    Simpliday▲137

    An all-In-One Calendar

    2016 · apps.apple.com · its alternatives →

15. 15
    CalendarPipe▲155

    Create pipes to filter, transform, and sync events between Google Calendar, Outlook, and Apple Calendar. Build visually, describe in plain English, or write code.

    Apr 2026 · calendarpipe.com · its alternatives →

16. 16
    Harmonizely▲92

    Schedule meetings without exchanging unnecessary emails!

    2018 · its alternatives →

17. 17
    Chronock▲110

    Scheduling and calendar sync, all in one

    Aug 2026 · chronock.ai · its alternatives →

18. 18
    OI Calendar▲78

    Encrypted, decentralized alternative to Google calendar

    2019 · cal.openintents.org · its alternatives →

19. 19
    Uniteable▲68

    Take your meetings to task

    2019 · uniteable.io · its alternatives →

20. 20
    Outlook Google Calendar Sync for Mac▲83

    Sync Outlook calendars to Google on your Mac

    Aug 2026 · outlookgooglecalendarsyncmac.com · its alternatives →

21. 21
    ShadowCal▲95

    Sync your Outlook Calendar to Google Calendar

    2025 · shadowcal.com · its alternatives →

22. 22
    Sheet2Cal▲100

    Organize calendar events inside from your Google Sheets doc.

    2020 · sheet2cal.com · its alternatives →

23. 23
    Google Calendar Sync by NotionExtensions▲94

    Two-way sync between Notion and your Google Calendars

    2021 · nodario.com · its alternatives →

24. 24
    Status Ninja▲94

    Sync your Google calendar events to your Slack status

    Jan 2026 · statusninja.app · 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 →