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Tuta Calendar: Secure Planner

Tuta Calendar: Secure Planner

Encrypted Events & Reminders

165 ratings
69 reviews
🔧 Utilities
📊 Productivity
Free
In-App Purchases

Details

Released
October 2, 2024
Updated
November 4, 2026

Developer

Tutao GmbH
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Tuta Calendar: Secure Planner screenshot #1 for iPhone
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Tuta Calendar: Secure Planner screenshot #9 for iPhone
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About

This app offers a secure, end-to-end encrypted calendar to protect your privacy. It provides essential planning tools like recurring events and multiple views, with seamless integration for privacy-conscious users.

✓Quantum-safe end-to-end encryption
✓Zero tracking and data sharing
✓Sync across mobile, web, and desktop
✓Recurring and external calendar sync
✓Multiple calendar views
✓Offline access
✓Secure event sharing
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What users say about Tuta Calendar

Reviews of Tuta Calendar are mixed: the Productivity app is rated 4.6/5 from 165 App Store ratings. What users like most: privacy and security focused, streamlined and minimalist design. Top complaints: frequent crashes and bugs, requires account/login. Summarized from real user reviews.

Positive things

  • 🔒Privacy and security focused
  • 👍Streamlined and minimalist design
  • 🔄Calendar subscriptions work well
  • ✨Good color schemes and views
  • ✅Private alternative to big tech
  • 👨‍👩‍👧‍👦Good for family use
  • 💡Well-designed and functional
  • 💯Privacy protection is a priority
  • 🚀Fast and efficient
  • 🌟Updates improve functionality
  • 🔒Data safety is a priority
  • 😊User-friendly interface
  • ✨Visually appealing design
  • 🌟Great encrypted calendar

Negative things

  • 🐛Frequent crashes and bugs
  • ⚠️Requires account/login
  • 📅Widget not working/limited
  • ❌No watch app support
  • ⏳Slow loading/reloading events
  • 🔕Double reminders from Tuta Mail/Calendar
  • 📉Data loss issues
  • 🗓️Missing holiday support
  • 🤔Calendar subscriptions can duplicate entries
  • 🚫Cannot delete calendars/subscriptions
  • 😵Cryptic error messages
  • ♿Poor readability for low vision
  • 🖱️UI issues with text size and color
  • 📅Default appointment length is 30 mins
  • 🗓️Week view limited to 8 hours
  • 🚫No on-device notes/non-login option
  • 🤏Cannot zoom/pinch to adjust time intervals
  • 👆Cannot move events by dragging
  • ❓Account creation issues (clock puzzle)
  • 🗂️Calendar entries not saving
  • 🎨Limited color coding for appointments
  • 📅App icon doesn't show current date
  • 🔢Day numbers not bold enough
  • 📅Month view shows only 4-5 letters of event
  • 🗓️No quick access to distant dates
  • 😊No emojis in events
  • 🚫FaceID login issues for free accounts
  • ❌Not user-friendly for planning
  • 🗄️Free tier lacks family planner
  • 😫Login issues (invalid credentials)
  • ❓Widget blank at times
  • 📅Widget only shows one day
  • 🚫No option to open locations in other map apps
  • 📅No week numbers displayed
  • 🚫No month view widget
  • 📅Limited display of event details
  • 🤔Usability issues compared to native apps
See all reviews
+1

What's New in Tuta Calendar

365.261030.0

November 4, 2026

What's new - Weekdays of events in calendar invitation emails now displayed - Reminders are now added for calendar events that are accepted from an email invitation and added to a calendar with default reminders set - Subscriptions to external calendars with "[username]:[password]" in the URL are now supported Bugfixes - Calendar now displays the correct age of contacts in birthday event previews - Birthday events are now displayed for contacts with birthdays on the 1st of the month A detailed list of the technical changes can be found on our client GitHub repository: https://github.com/tutao/tutanota/releases/tag/tuta-calendar-ios-release-365.261030.0

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Subscriptions & In-App Purchases

Legend (Yearly)

One year of the Legend plan.

$99.991 Year
How to cancel Tuta Calendar subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

UPDATE: App Not loading resolved

Well I was happy with it but after ios update it won’t load. I deleted the widget and reopened the app from app store. It loaded but don’t know how to get the widget back on home screen
UPDATE: It works fine. I deleted the entire app and after getting it again, all works well. It even kept my scheduled events. I Love This App!
Show more
Jjustmeqt

Response from developer

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.

Alt to Google Calendar

Its a bit glitchy sometimes but very worth it to me to have dropped gmail and google calendar. I like the wiget. I tend to use the calendar via the mail app more, but its nice to have a choice. Color coding for events in the calendar would be a great addition to the app.
@@$&2344990

Response from developer

Thank you for your thoughtful suggestions! We’ll share it with our team. If you have more ideas, feel free to reach out at hello@tutao.de. We’d love to hear them!

Excellent calendar

Works exactly as it should simple, effective reliable.
HHfefcxdsfj

Response from developer

Your appreciation for our secure and private mail and calendar means a lot - thanks for the fantastic review!

Quick impressions

It’s been keeping up with regular events and vital updates, even when I don’t. It’s more efficient in use than SOME megacorp brand browsers which will remain anonymous, and the reminders can wear any alarm sound effect I want.
HPhiding our crap product

Response from developer

Your positive feedback on our secure and private mail really brightened our day - thank you!

Registrierung nicht möglich

Ich kann mich leider nicht registrieren mit dem iPhone. "Ein Fehler ist aufgetreten."Bitte versuchen Sie es später erneut " Und"Type Unknown Error" werden mir angezeigt.
Was kann ich tun?
TtiiiHa

Response from developer

Hallo, das ist seltsam und sollte natürlich nicht so sein. Könnten Sie sich bitte über die Support-Funktion in der App oder direkt unter hello@tutao.de an uns wenden, damit wir Ihren Fall genauer untersuchen und Ihnen so schnell wie möglich helfen können?

See 64 more reviews

Developer apps

Tuta Mail: Secure Email
Tuta Mail: Secure Email

Encrypted Private Inbox

📊 Productivity

(3.8K)

Free
In-App Purchases
See developer apps

User experience

🐞

Reported Bugs

19 issues

App crashes frequently

Bug

Widget is not working or is blank

Bug

Calendar events not saving or changes not saving

Bug

App logs out automatically and shows invalid credentials

Bug

Double reminders for appointments

Bug

Lost important information/data

Bug

Calendar subscriptions duplicate entries

Bug

Cannot delete calendars or calendar subscriptions

Bug

Cryptic error messages

Bug

App constantly crashing on opening

Bug

Login issues

Bug

FaceID login not working for free accounts

Bug

Account creation issues (clock puzzle)

Bug

Search function doesn't work on app

Bug

Events from calendar subscriptions not syncing

Bug

App ignores OS font size settings

Bug

Issues with recurring events being duplicated

Bug

Calendar entries not visible without connection

Bug

Events reload every time the app opens

Bug
✨

Requested Features

31 requests

App for the Watch

Feature

Icon shows current date

Feature

Ability to see holidays marked

Feature

Import from Apple calendar

Feature

Adjustable app opening view (e.g., month view)

Feature

Default appointment length setting

Feature

Color code appointments on the same calendar

Feature

Widget that shows more than one day

Feature

Widget that shows entire month

Feature

Ability to see monthly and agenda view simultaneously

Feature

Option to zoom/pinch time intervals

Feature

Move event blocks by dragging

Feature

Custom settings for specific days of the week

Feature

Week numbers displayed

Feature

Full-featured calendar

Feature

Option to open locations in other map apps

Feature

More customizability in UI

Feature

Better readability for low vision users

Feature

Adjustable text size respecting OS settings

Feature

More compact week view

Feature

Display more event details in month view

Feature

Quick access to distant calendar days

Feature

Emojis in events

Feature

Family planner in free tier

Feature

On-device notes/non-login option

Feature

Support for holidays by country/region

Feature

Dark mode option

Feature

Advanced analytics dashboard

Feature

Ability to expand week view to include more than 8 hours

Feature

Sync with other calendar apps

Feature

More robust search functionality on mobile app

Feature

FAQ

Does Tuta Calendar have ads?

No, Tuta Calendar is ad-free. The app emphasizes a zero-tracking policy and does not display advertisements, ensuring a private user experience.

What are the pricing tiers for Tuta Calendar?

Tuta Calendar offers a free plan with secure, encrypted email and calendar. Premium plans like 'Revolutionary' and 'Legend' offer increased storage, unlimited calendars, and advanced features, available monthly or yearly.

How secure is Tuta Calendar?

Tuta Calendar uses quantum-safe end-to-end encryption for all events and reminders. It also features a zero-knowledge architecture, meaning the developers cannot access your schedule, and adheres to GDPR compliance.

Can I sync Tuta Calendar with other services?

Yes, Tuta Calendar syncs across mobile, web, and desktop devices. It also allows you to subscribe to external calendars, with updates happening automatically.

What are the main user complaints about Tuta Calendar?

User reviews indicate issues such as frequent crashes, slow loading times, and double reminders when integrated with Tuta Mail. Some users also report problems with widgets and a lack of certain advanced features in the free tier.

Is Tuta Calendar available on all devices?

Tuta Calendar is currently supported on iPhone and iPad. Syncing across mobile, web, and desktop is a key feature, ensuring access from various platforms.

How often is Tuta Calendar updated?

The latest version of Tuta Calendar is 365.261030.0, last updated on November 4, 2026. While this indicates a recent update, the app's development history suggests ongoing improvements and feature additions.

What makes Tuta Calendar different from other calendar apps?

Tuta Calendar's primary differentiator is its strong focus on privacy and security through end-to-end encryption. Unlike many mainstream calendar apps, it avoids tracking, profiling, and data sharing.