PearCal is a peer-to-peer calendar app that syncs directly between devices — no server, no cloud, no accounts required.
Your calendar data never leaves your group. It lives only on the devices of the people you choose to share with, powered by Hypercore Protocol.
FEATURES
Peer Groups
Create a group and invite others via a share link or QR code. Each group has its own color and avatar. Members see only the events shared with them.
Events & Reminders
Create one-time or recurring events. Set a reminder time per event. Selectively share events with specific group members — not everyone in a group has to see every event.
Holidays
Optional US, Canada, and UK public holiday calendars. Toggle per country from your profile. Holiday events are read-only and stored locally only.
Privacy First
No account creation. No email address. No tracking. No ads. Your data stays on your devices.
Open Source
PearCal is free and open source. Source code is available on GitHub.
PERMISSIONS
Camera — used to set your profile photo and scan QR invite codes.
Photo Library — used to set your profile photo.
What's new (v1.0.27)
## What's Changed
### Improvements
- cross-grant group write access to linked sibling devices
- deterministic pair-time group fan-out + re-announce retry
### Bug Fixes
- consolidate sibling-authored personal data onto the primary