Export from Google
In the Google Calendar settings under “Import and export” download all calendars as a ZIP with ICS files.
Private Calendar
Google Calendar alternative
The Google Calendar alternative with a focus on data protection.
Everything you expect from your calendar, but end-to-end encrypted and hosted in Germany. Your Google appointments will be moved via ICS file in just a few minutes.
Week view · Tap the phone
Calendar content end-to-end encrypted
Hosted in Germany
Documented cryptography
Weekly view
Comparison
Private Calendar and Google Calendar in comparison.
Google Calendar is practical and free, but it doesn't encrypt your appointments end to end. These are the differences.
| Feature | Private Calendar | Google Calendar |
|---|---|---|
| Title, location and description end-to-end encrypted | Yes | No¹ |
| Date and time encrypted | Yes² | No |
| Provider location (EU users) | Germany | Ireland (Google Ireland Limited) |
| Location | Germany, encrypted backup in Switzerland | Google data centres worldwide |
| Standalone calendar | Yes, register with your email address | Part of the Google account |
| Free plan | 2 calendars, 25 MB | Yes |
| Share calendar | Premium, end-to-end encrypted | Yes |
| External iCal subscriptions | Premium; the apps load the link themselves, the server never sees it | Yes |
| Booking links for free times | Premium, up to 15, encrypted | Yes |
| Source code visible | Cryptography modules (Apache 2.0) | No |
| CalDAV/Third party calendar apps | No | Yes |
¹ Google only offers client-side encryption in certain Workspace plans (e.g. Enterprise Plus), not for personal Google accounts.
² The server recognizes which month an encrypted block belongs to, but not the day, time or content.
As of October 2026, according to Google's public information. Google Calendar is a trademark of Google LLC; Private Calendar is not affiliated with Google.
Import into Private Calendar
Import the ICS file in the browser, Android or iPhone app. It is encrypted on your device.
Install apps
Android app on Google Play, iPhone app on the App Store. Your calendar is the same everywhere and encrypted.
Step-by-step instructions for each provider are under Switch calendars.
Features
Everything a calendar needs – without spying on you.
Appointments, tasks and reminders, neatly organized. And underneath, an architecture that treats your privacy not as an option, but as its foundation.
Store and sync end-to-end encrypted
For storage and synchronization, your events are encrypted on your device before being sent to the server. Calendar and master keys reach the server only in encrypted form, never in plain text.
Hosted in Germany
Your data remains under European data protection, on servers in Germany.
Offsite backup in Switzerland
The database backups are encrypted and geographically separated. You can also create your own exports.
Documented cryptography
AES-256-GCM, PBKDF2/HKDF, local keys and optional two-factor authentication; specification and relevant source code can be viewed.
Appointments, tasks & reminders
Plan appointments and tasks in a calendar and receive timely reminders. Browser, Android, iPhone or power saving rules can delay or suppress notifications. Premium adds several reminders per appointment, task deadlines and a working time counter with statutory breaks and weekly balance (desktop browser, Android and iPhone app).
Share & external iCal subscriptions
Share your own calendars with encryption and add external iCal subscriptions. The Android and iPhone apps retrieve these subscriptions directly and synchronize them with end-to-end encryption.
This is how Private Calendar protects your appointments
Encrypted before it leaves your device.
Calendar content is stored as encrypted blocks. With external iCal link subscriptions, the server receives neither the private link nor the source content in plain text.
Encrypted on your device
Every appointment is encrypted locally with AES-256-GCM before it is synchronized.
Sync encrypted
The server only stores calendar content as encrypted blocks. Link subscriptions are loaded directly from a signed-in Android device or iPhone.
Only you have the key
The key stays with you. Without it, the data remains permanently unreadable – for everyone.
Check open source cryptography yourself
The published security modules are open source under Apache 2.0. Source code, specifications and verification steps are available.
Pricing
Start for free. More if needed.
Both plans use the same end-to-end encryption. Premium increases limits and adds iCal subscriptions, which the Android and iPhone apps retrieve directly and encrypt before synchronization.
Free
€0
Permanently free, with no time limit.
- 2 calendars of your own
- Appointments, tasks & reminders
- Own/imported content: E2E & Sync
- 25 MB storage
- Export (JSON/ICS)
Premium
€18.00 / year
Equivalent to €1.50 per month (introductory price) · or monthly at €2.99 · cancellable with one month’s notice after the initial term.
- Up to 25 calendars of your own
- Share your own calendars
- External iCal subscriptions
- Widgets for Android and iPhone
- Booking links: share free times, up to 15
- 500 MB storage
- Multiple scheduled reminders*
- Task deadlines
- Working time counter
- Sleep window with sleep reminder
- Twilight in the daily and weekly grid
*Notifications are not guaranteed and should not be the sole control of critical deadlines. Germany: Final prices, payment via Stripe, no VAT under § 19 UStG. Austria, Switzerland, Finland, Denmark, the Netherlands, Ireland and Sweden: The taxes applicable there are added to these prices; payment via Link. The pricing page shows the total price by country selection. New subscriptions only for these eight countries. · 14-day right of withdrawal.
Frequently asked questions
Good to know.
Can I import my Google Calendar events?
Yes. Export your Google calendars as ICS files and import them into Private Calendar. Events are encrypted on your device before uploading. Step-by-step instructions: Switch calendars.
Can I still subscribe to a Google Calendar?
Yes, with Premium. The secret iCal address of a Google calendar can be integrated as a link subscription. The Android and iPhone apps load the subscription directly; the server sees neither the link nor the content in plain text.
Is there appointment booking like Google’s?
Yes. With Premium you share up to 15 booking links with your free times. Requests reach you encrypted.
What does “end-to-end encrypted” mean?
Data is encrypted on your device before storage and synchronization. Your calendar and master keys are generated there and reach the server only in encrypted form; your password protects access to them. Events, tasks and their details synchronize as encrypted calendar blocks. Neither the operator nor anyone who obtains the database can read those blocks. Decryption takes place locally on your devices and, for explicitly shared content, on recipients’ devices. This uses AES-256-GCM and local key management whose source code is published for review.
Can I use Private Calendar for free?
Yes. The free plan includes two calendars of your own and 25 MB of storage, with no time limit. That's enough for tens of thousands of appointments, or ten appointments per week for many decades. Premium is optional, increases limits and adds features such as calendar sharing, iCal subscriptions and booking links.
Platforms
Runs where you are.
One account, the same personal and imported appointments everywhere, synchronized and end-to-end encrypted. The options differ per platform.
Desktop
Windows · macOS · Linux
Runs in current versions of Chrome, Firefox, Edge and Safari. A PWA installation is possible as long as the browser offers it; browser reminders only work when the application is open.
Android
Native app · Android 8 or later
Native app with background sync, reminders and direct updating of external iCal subscriptions. Android, permissions and energy saving rules can delay retrieval and delivery.
GET IT ONGoogle PlayiPhone & iPad
Native app · iOS 17 or later
Native app with background sync, reminders and direct updating of external iCal subscriptions. iOS, permissions and energy saving rules can delay retrieval and delivery.
Download on theApp StoreYour data is encrypted on every device – the key stays with you, whichever device you sign in on.
Ready for a calendar that's yours?
Set up in minutes. Calendar content end-to-end encrypted, no ad trackers. The Android app is available on Google Play and the iPhone app is available on the App Store. Mobile apps update link subscriptions directly.
Start now for free →