What is end-to-end encryption?

End-to-end encryption is the strongest protection your data can have. It means your calendar can be read by only you and the people you share it with. No one else. Not even OurCal.

How it’s different from normal encryption

Most calendar apps encrypt your data on its way to their servers and while it’s stored there. But the provider keeps the keys — so the service can read your whole schedule at any time, for any reason, and you’d never know. So can a malicious third party who breaks in. That’s your plans, your whereabouts, and the whereabouts of the people around you.

With end-to-end encryption, your data is locked on your device, before it’s sent — and only your group’s devices hold the keys. Our servers only ever see scrambled, unreadable data.

How OurCal is unique

OurCal is the only end-to-end encrypted shared calendar app built for couples, families, and friends — and it’s been that way from day one. Your profile, groups, calendars, events, and messages are all protected, automatically. There’s nothing to switch on.

Our encryption is provided by Seald and certified by ANSSI, France’s national cybersecurity agency — learn more about our certification.