Privacy-First Protocol

Invisible Sync — private calendar and contact sync.

The zero-knowledge alternative to Google. Sync your calendars and contacts across every device without giving away your data.

No tracking. No ads. Just sync.

Product preview

Calendar Sync

Synced 2m ago

Invisible Sync calendar interface on mobile

Data Security

0.00%
Leaked

Features

01

Native experience

Integrates directly with the system apps you already love. No custom calendar apps required on iOS or Android.

02

End-to-end

Everything is encrypted on your device before it hits our servers. Even we can't see who you're meeting with.

03

No Google required

Break free from Google's ecosystem. Your calendar and contacts belong to you, synced through open standards.