Never copy events between calendars again.
Kelbra keeps Google, Apple, and shared calendars in bidirectional agreement. Edit any one of them, and the rest catch up automatically.
Built on real standards
How it works
1. Connect your calendars
Google via a single OAuth click, Apple/iCloud with an app-specific password (we walk you through it), or create a shared calendar right here.
2. Everything stays in agreement
Edit an event on any connected calendar, and the N-way sync engine propagates that change to every other one, in every direction, not just one-way.
3. Stay in control
A full history of every change, deletes you can recover any time, and if two calendars are ever edited at once, we freeze that one event and let you pick a winner instead of guessing.
What you actually get
True bidirectional sync
Not a one-way import, but a genuine N-way ripple: any connected calendar can be the source of a change.
Google, Apple, and shared
Google Calendar (OAuth), Apple/iCloud (CalDAV), and a shared calendar native to this app that any member can edit.
Real conflict detection
If the same event changes on two calendars independently, nothing gets silently overwritten. You review and choose.
Full activity history
Every create, update, and delete the sync engine makes is logged, with exactly which calendar it came from and went to.
Recoverable deletes
Every deleted event is backed up before it's removed, so an accidental delete is never actually gone.
Real-time updates
Google Calendar changes trigger sync via push notifications, not just polling on a timer.