The world’s only calendar with certified End-to-End Encryption.
Every event, message, and location is scrambled on your device and unlocked only by your group. No one in between can read it: not advertisers, not a server, not even us.
Trusted by 100,000+ groups · No ads, no tracking
Locked before it ever leaves your device.
End-to-end encryption is simple: your data is scrambled on your device, travels as meaningless code, and is only unscrambled by the people you share it with.
Your device
Your event is locked here, before it goes anywhere.
EncryptedOurCal + the internet
All we ever see is scrambled code. We can’t read your calendar.
9f3a2c7e…b1d4Your group
Only their devices hold the key to unlock it.
UnlockedThe same event. Two very different servers.
On most calendars, the server stores:
Readable by the company, its ad partners, and anyone who breaches it.
On OurCal, the server stores:
Meaningless to everyone but your group. End-to-End Encrypted.
Your calendar knows everything about you.
Where you live. Where your kids are. When your home is empty. Who you see, and when. A calendar is a map of your entire life. Here is what that map gives away, and why we encrypt every part of it.
Your address, and exactly when you are there.
On OurCal, only your group ever sees it.
Where your children are, and when.
On OurCal, only your group ever sees it.
That your home sits empty for seven days.
On OurCal, only your group ever sees it.
Your health, in plain text.
On OurCal, only your group ever sees it.
The shape of your family, exposed.
On OurCal, only your group ever sees it.
Who you see, and where you go.
On OurCal, only your group ever sees it.
Encryption that covers everything.
Events and calendars
Every event, title, time, and note is encrypted, so only the people you invite can see what you have on.
Messages and chat
Event chat is end-to-end encrypted too. Talk freely about any plan, knowing it stays inside your group.
Locations
Home, away, or a meeting spot: every location is encrypted. Your movements stay yours alone.
No ads, no tracking
You pay for OurCal, so your data is never the product. We never sell it, mine it, or show you ads.
Certified, not claimed
The encryption is built on Seald and certified by ANSSI. Independently audited, not just promised.
Yours to take
Export your events and download your data whenever you like. Your calendar always belongs to you.
Most shared calendars weren’t built to be private.
| Privacy | OurCal | Most shared calendars |
|---|---|---|
| End-to-end encrypted by default | ✓ | ✕ |
| Encryption certified by a national cyber agency | ✓ | ✕ |
| Encrypted messages, photos, and files | ✓ | ✕ |
| Encrypted event locations | ✓ | ✕ |
| No ads | ✓ | ✕ |
| No tracking or data mining | ✓ | ✕ |
| Export your data and leave anytime | ✓ | ✕ |
The only one in the world
Certified by a national cybersecurity agency.
ANSSI is the French government agency that guards national cyber-defence. It audited and certified the encryption behind OurCal, built on Seald. No other shared calendar in the world holds this certification. Your privacy is proven, not promised.
The details, explained.
What is end-to-end encryption, in plain English?
Your data is scrambled into unreadable code on your device before it is sent, and can only be unscrambled on the devices of the people you share it with. The keys never leave your group, so no one in between can read it: not your network, not a server, not even OurCal. Learn more.
What does “ANSSI-certified” actually mean?
ANSSI is France’s national cybersecurity agency. It independently audited and certified the encryption technology behind OurCal (built on Seald). No other shared calendar in the world carries this certification. It is proof, not marketing. Learn more.
If it’s encrypted, how do you show me my calendar?
Your own devices hold the keys. Your calendar is decrypted right on your phone, tablet, or Mac, just for you and your group. The scrambled version is all that ever sits on a server. Learn more.
Can I export my events and leave anytime?
Yes. You can export your events and download a copy of your personal data whenever you like, straight from OurCal’s settings. Your data is always yours to take with you. Learn more.
The shared calendar that keeps your life private.
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