Intuitive, clean design for easy organization
Intuitive UI lets you plan all appointments, business meetings and repeating tasks easily.
Encrypted Calendar: Secure, Private & Intuitive
Your personal and professional events deserve to be protected. Choose the free Tuta Calendar to keep them safe.
Explore Tuta Business for professional useSecurely organize your life with our encrypted calendar
Tuta Calendar is the only zero-knowledge calendar with quantum-safe encryption, making sure all your events are protected from snooping and prying eyes.
Whether you schedule events, receive event invitations or share your calendar with others, all steps in the Tuta Calendar are automatically encrypted end-to-end. Finally, your data belongs to you, no one else can access it!
Plan and organize your busy schedule in privacy.
Encrypted, zero-knowledge calendar guarantees privacy
Encryption and zero-knowledge architecture ensure your schedule stays private.
Never miss an event
Tuta Calendar push notifications flexibly remind you of your events. The notifications are sent securely so that no third party will be able to track you.
Maximum login security
Easily switch on two-factor authentication to protect your login credentials from malicious attacks.
Stay organized, on all your devices
View and organize your schedule wherever you are with the free Tuta Calendar app for Android and iPhone.
Free open source desktop clients
Tuta Calendar has free and open source desktop clients for Windows, macOS and Linux.
Multi-user support and sharing
Share calendars and events with your family, organization or company with a few taps.
The protection of your private data is not a priority to services like the Google or Microsoft calendars.
It's time to turn on privacy with Tuta Calendar and its built-in encryption!
Your data, your rules
This is the most secure email and calendar software that I've been able to find. They have super fast support that got me out of a big jam. Their paid tiers are well worth the money.
Marc Doni
It's just as easy to use as Google Calendar. The key advantage is its security, and it's a European program.
Friedrich-Wilhelm Niedert
A fantastic app! Privacy is paramount with emails, contacts, and calendar information, which isn't used for advertising. I highly recommend it! The team is available and responsive to any issues, should they arise. Go for it, without hesitation!
Raphaël Cauhépé-François
Works well, beautiful widget. I'm not missing anything from Google Calendar.
Patrik Olson
Super clean, everything works and encrypted/open source. It doesn't get better than this. Switched from Google and I like it more than my old Google calendar!
Britain Reynolds
More Secure - Great Service - No Regrets! Affordable, exceptional value that continues to get even better with time. Thank you Tuta.
Mrs. S Ochoa
Seamlessly integrated with email
Tuta Calendar comes with seamlessly integrated encrypted emails and contacts so that you can easily handle all your communication confidentially in one place. Contacts can be synced on iPhones, iPads and Android devices so that you can use Tuta as your main contacts app, knowing that also the data of your friends are well guarded.
Easily say "no" to Big Tech surveillance and turn on privacy!
Tuta Calendar for business
Tuta Calendar enables you and your team to stay organized securely and to co-ordinate with ease.
Tuta offers end-to-end encrypted products for businesses. The solution is digitally sovereign and in line with the strict GDPR data protection regulation. With Tuta you can be sure that your sensitive business information remain confidential.
Tuta Calendar FAQ
What is Tuta?
Tuta (formerly Tutanota) launched in 2014 to create a better web. Today, Tuta is the most secure calendar, email, and contacts service. We are innovation leaders in encrypted communication and have already implemented post-quantum secure encryption to keep your private data safe from future threats. We are at the forefront of the privacy revolution by offering everyone in the world private email, calendar, and contacts for free.
Is the information on my Tuta Calendar safe?
Yes. The seamlessly integrated end-to-end encryption makes the Tuta Calendar one of the most secure calendars available worldwide. The Tuta Calendar protects all your events and even your push reminders from prying eyes. No unauthorized person can decrypt or gain access to your personal or business events stored in the Tuta Calendar.
Can I import and sync all my calendars?
Yes. You can easily import all your calendars to Tuta via the settings. Once imported your calendars sync automatically across all your devices, no matter where you use the Tuta app. Find details on how to import your calendars here..
Does the calendar have event reminders?
Yes. The Tuta Calendar pushes event reminders reminders directly to your Android, iPhone, iPad or PC to make sure you never miss an event, even when offline. These reminders are kept hidden from your phone's operating system so that not even Google or Apple can see your events.
Is the Tuta Calendar available on mobile devices?
Tuta has encrypted mobile apps for Android and iOS allowing you to access your schedule, plan events, and stay organized easily from your smartphone. Tuta’s secure calendar is also available on web and desktop clients.
Can I create and share calendars?
Yes. You can create an encrypted calendar that all people or only certain employees in your organization can access. When sharing your calendar, you can assign different access rights: Read only, Read and write, Write and manage sharing. For instance, you can have a company-wide group which you use to share important appointments, public holidays, vacation days and repeating events such as team meetings. All data in the Tuta Calendar is always encrypted - even when you share your calendar.