Tuta: Secure Private Calendar

Name: Tuta: Secure Private Calendar
Rating: 4.7 (103 reviews)
Author: Tutao GmbH

Planner, Reminders & Events

Free · In‑App Purchases

103 Ratings
Ages

4+
Years
Category

Productivity
Developer

Tutao GmbH
Language

EN
+ 60 More
Size

40.8
MB

PROTECT YOUR PRIVACY WITH TUTA CALENDAR – FREE, SECURE & ENCRYPTED PLANNER Take control of your schedule with Tuta Calendar, the world’s most secure calendar app, trusted by privacy-conscious users worldwide. With quantum-safe encryption, your events, reminders, and schedules stay private. Fast, open source, and free: Tuta Calendar is built with the highest security standards. Plus, it’s perfectly integrated with the Tuta Mail app. WHY CHOOSE TUTA CALENDAR? Stay Secure • Quantum-Safe Encryption: Your entire schedule, including event details and reminders, is fully end-to-end encrypted – only you can access it. • Zero Tracking: No ads, no profiling, no data sharing. Your calendars are yours. • Zero-Knowledge Architecture: We can’t see your events, meeting times, or attendees. Your schedule is invisible to us. • Secure Event Sharing: Share events securely with Tuta users or external calendars via password-protected invites. • GDPR-Compliant & Hosted in Germany: Protected by strict European privacy laws. Boost Your Productivity • Sync Across Devices: Your events instantly update on mobile, web, and desktop. • Recurring Events: Schedule daily, weekly, monthly, yearly, or custom repeating events. • Multiple Calendar Views: Easily switch between agenda, daily, 3-day, weekly, or monthly views. • External Calendar Sync: Subscribe to external calendars – updates happen automatically. • Unlimited Calendar Management (paid feature): Manage multiple calendars and toggle visibility effortlessly. • Offline Access: View and manage your schedule even without an internet connection. Simple & Intuitive • User-Friendly Interface: Modern, clean design with light and dark modes. • Quick Navigation: Create, edit, or delete events in just a few taps. • Smart Event Reminders: Get encrypted notifications to ensure you never miss an appointment. • Email Integration: Link calendar events directly to your Tuta Mail account for seamless scheduling. PRICING Tuta offers a free plan for everyone, plus premium plans with extra features, available monthly or yearly. Every subscription includes Tuta Mail and Tuta Calendar, seamlessly syncing across all your devices. • Free – Secure, encrypted email and calendar at no cost. • Revolutionary – 20 GB, unlimited calendars, calendar invites and sharing, custom domains, and more. • Legend – 500 GB, unlimited calendars, calendar invites and sharing, 30 email addresses, and advanced features. No matter which plan you choose, your communication remains end-to-end encrypted, private, and completely free from tracking. BONUS: GET TUTA MAIL WITH THE SAME ACCOUNT Your Tuta account gives you access to Tuta Mail, the encrypted email service with the same quantum-safe security as your calendar. One account, two essential privacy tools – completely free. WHO IS BEHIND TUTA? Freedom fighters committed to protecting freedom of speech and your right to privacy! • Developed & Hosted in Germany: Adheres to strict GDPR data protection laws. • Private by Design: We can’t access your data – secure password reset ensures your privacy. • End-to-End Encrypted from the Ground Up: Every event, contact, and reminder is encrypted by default. TRUSTED BY SECURITY EXPERTS "Tuta provides an exceptional level of security and privacy... If security is your priority, there’s not much better than Tuta." — TechRadar "Since Tuta is open source and has amazing products in development, I moved my email there." — Journalist Dan Arel "Tuta’s email security is unmatched. Its mobile apps are fast and user-friendly, with fair pricing and a free option." — CyberSynchs JOIN MILLIONS WHO TRUST TUTA Protect Your Schedule: Download Tuta Calendar today and join millions who trust us for secure, encrypted time management. Website: https://tuta.com Open Source Code: https://github.com/tutao/tutanota Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Ratings & Reviews

4.7

out of 5

103 Ratings

It’s great and another feature would be much appreciated!
10/07/2024

willow1749
The app is really nice and it’s refreshing to have a secure and private calendar that looks good!However, one thing I would appreciate would be the ability to see the monthly view and the agenda view at the same time. Similar to how Apple or another competitor has implemented it!

Developer Response
Thank you for your praise and constructive feedback. Much appreciated! Noted and passed on to the developers.
It’s great and another feature would be much appreciated!
10/07/2024

willow1749

The app is really nice and it’s refreshing to have a secure and private calendar that looks good!However, one thing I would appreciate would be the ability to see the monthly view and the agenda view at the same time. Similar to how Apple or another competitor has implemented it!
Developer Response 10/14/2024
Thank you for your praise and constructive feedback. Much appreciated! Noted and passed on to the developers.
Not user-friendly but Data safety friendly
May 14

K19852000
I switched from google calendar for data privacy issues. Tuta has great data privacy and so I appreciate it for that alone. The usability is low. Events are automatically made 30 minutes and the user has to scroll through 60 individual minute markers to make an event an hour long. Viewing the calendar by the week only shows 8 hours a day which is not helpful when trying to plan for day and evening events. There is no option to expand the week view of the calendar to include any more than 8 hours per day. This is in the desktop, mobile as well as IPad view. This doesn’t sound Iike a big deal but has become a massive annoyance. Once again, great for data privacy but awful for usability. Looking forward to any and all updates to the calendar.

Developer Response
Thank you for your feedback, we take it to heart! The Tuta Calendar is a new addition on which we are currently actively working on to improve UX/UI. If you will have more feedback, please feel free to write to us at hello@tutao.de.
Not user-friendly but Data safety friendly
May 14

K19852000

I switched from google calendar for data privacy issues. Tuta has great data privacy and so I appreciate it for that alone. The usability is low. Events are automatically made 30 minutes and the user has to scroll through 60 individual minute markers to make an event an hour long. Viewing the calendar by the week only shows 8 hours a day which is not helpful when trying to plan for day and evening events. There is no option to expand the week view of the calendar to include any more than 8 hours per day. This is in the desktop, mobile as well as IPad view. This doesn’t sound Iike a big deal but has become a massive annoyance. Once again, great for data privacy but awful for usability. Looking forward to any and all updates to the calendar.
Developer Response May 16
Thank you for your feedback, we take it to heart! The Tuta Calendar is a new addition on which we are currently actively working on to improve UX/UI. If you will have more feedback, please feel free to write to us at hello@tutao.de.
🔎 Can’t See It 🔍
Feb 20

schoowa
I honestly wish that the UI designers in your organisation would spend some time with someone who has vision loss. I like the functionality of your products but find both this calendar app and your email app to be almost impossible to use. The unfortunate combination of small text size, difficult-to -read font, and muted colour scheme are definitely not user-friendly for someone with low vision issues. In contrast, I find the native iOS calendar app to be quite readable. Otherwise, thank you for a great product.

Developer Response
Hi, thank you for your feedback and sorry for the inconvenience. We are looking into this and will pass this on to the team!
🔎 Can’t See It 🔍
Feb 20

schoowa

I honestly wish that the UI designers in your organisation would spend some time with someone who has vision loss. I like the functionality of your products but find both this calendar app and your email app to be almost impossible to use. The unfortunate combination of small text size, difficult-to -read font, and muted colour scheme are definitely not user-friendly for someone with low vision issues. In contrast, I find the native iOS calendar app to be quite readable. Otherwise, thank you for a great product.
Developer Response Feb 26
Hi, thank you for your feedback and sorry for the inconvenience. We are looking into this and will pass this on to the team!
Doesn’t save events?
Sep 7

ardelorenzo
A decent calendar. But even with it being online and at the most up to date version, it occasionally has issues with new events not being saved, or changes to existing events not being saved. It is often enough I’ve had to get in the habit of double checking every time I make an event which is a pain. And if it doesn’t save, i have to just wait and try it a few hours later hoping it has fixed itself. UPDATE: I emailed them in response to Tuta’s request below, but have been waiting since Aug 19, 2025 for any meaningful help in return

Developer Response
Hi, that is odd and of course should not be that way. Could you please contact us via the support function in app or directly at hello@tutao.de, so we can have a closer look at your case and help you asap.
Doesn’t save events?
Sep 7

ardelorenzo

A decent calendar. But even with it being online and at the most up to date version, it occasionally has issues with new events not being saved, or changes to existing events not being saved. It is often enough I’ve had to get in the habit of double checking every time I make an event which is a pain. And if it doesn’t save, i have to just wait and try it a few hours later hoping it has fixed itself. UPDATE: I emailed them in response to Tuta’s request below, but have been waiting since Aug 19, 2025 for any meaningful help in return
Developer Response Aug 14
Hi, that is odd and of course should not be that way. Could you please contact us via the support function in app or directly at hello@tutao.de, so we can have a closer look at your case and help you asap.

See https://github.com/tutao/tutanota/releases for full Changelog

Version 317.251217.0

5d ago

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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