Alternatives

Products that do what Caltsu does

Sync Google, Outlook & Apple calendars. Keep events private.

1. 1
   Outlook Google Calendar Sync for Mac▲83

   Sync Outlook calendars to Google on your Mac

   17d ago · outlookgooglecalendarsyncmac.com

2. 2
   OneCal▲125

   Synchronise Outlook and Google Calendars

   2023

3. 3
   Chronock▲110

   Scheduling and calendar sync, all in one

   23d ago · chronock.ai

4. 4
   ShadowCal▲95

   Sync your Outlook Calendar to Google Calendar

   2025

5. 5
   Timely▲176

   Pull your calendar availability in 3 seconds

   Jul 2026 · trytimely.co

6. 6
   CalendarPipe▲155

   Programmable calendar sync for humans and AI agents

   Apr 2026 · calendarpipe.com

7. 7
   Notion Calendar▲1,198

   Beautifully designed for your work and life

   2024 · notion.so

8. 8
   Status Ninja▲94

   Sync your Google calendar events to your Slack status

   Jan 2026

9. 9
   SnapTodo▲609

   If Cursor & To-do had a baby.

   Dec 2025

10. 10
    Button for Google Calendar™▲530

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

    2021

11. 11
    Cal.com Companion Apps▲640

    Native iOS & Android App + Browser Extensions for scheduling

    Jan 2026 · cal.com

12. 12
    Notion Calendar Sync▲283

    2-way sync between Notion and your Google Calendar

    2021

13. 13
    Calsyncx▲2

    Sync Outlook to Google Calendar instantly with no setup

    Mar 2026

14. 14
    Google Calendar▲410

    Spend less time managing your day, now on iOS

    2015

15. 15
    Nook Calendar▲314

    Own your time, reclaim your attention

    2022

16. 16
    TidyCal 2.0▲376

    Scheduling that's 10x faster & 10x simpler

    2021

17. 17
    Sunsama for macOS▲265

    If Trello & Google Calendar had a baby - now for Mac

    2018

18. 18
    SyncThemCalendars▲83

    Setup a synchronization between calendars

    2019

19. 19
    Google Calendar Sync by NotionExtensions▲94

    Two-way sync between Notion and your Google Calendars

    2021

20. 20
    SavvyCal for iCloud▲293

    Scheduling links for iCloud, plus Google, Outlook, Fastmail

    2021

21. 21
    2Gcal▲4

    Sync your Outlook Calendar to Google Calendar

    Jun 2026 · 2gcal.com

22. 22
    Syncalendars▲5

    Sync Google&Apple Calendars with Notion in one click

    Jan 2026

23. 23
    Coupler.io▲150

    Sync apps with Google Sheets on schedule, no coding required

    2021

24. 24
    Koalendar▲131

    Free online appointment scheduling software

    2021

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