# Tuta Calendar:  Secure Planner — user reviews

> 66 indexed App Store user reviews of Tuta Calendar by Tutao GmbH, rated 4.60/5 from 158 ratings.

- Source: https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811/reviews
- App overview in markdown: https://appshunter.io/ios/app/tuta-calendar-secure-planner/id6657977811.md
- Rating breakdown: 5★ 130 · 4★ 13 · 3★ 4 · 2★ 2 · 1★ 9

## What do users think of Tuta Calendar?

Overall sentiment: mixed

**Pros**

- 🔒 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

**Cons**

- 🐛 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

**Commonly reported bugs**

- App crashes frequently
- Widget is not working or is blank
- Calendar events not saving or changes not saving
- App logs out automatically and shows invalid credentials
- Double reminders for appointments
- Lost important information/data
- Calendar subscriptions duplicate entries
- Cannot delete calendars or calendar subscriptions
- Cryptic error messages
- App constantly crashing on opening
- Login issues
- FaceID login not working for free accounts
- Account creation issues (clock puzzle)
- Search function doesn't work on app
- Events from calendar subscriptions not syncing
- App ignores OS font size settings
- Issues with recurring events being duplicated
- Calendar entries not visible without connection
- Events reload every time the app opens

**Most requested features**

- App for the Watch
- Icon shows current date
- Ability to see holidays marked
- Import from Apple calendar
- Adjustable app opening view (e.g., month view)
- Default appointment length setting
- Color code appointments on the same calendar
- Widget that shows more than one day
- Widget that shows entire month
- Ability to see monthly and agenda view simultaneously
- Option to zoom/pinch time intervals
- Move event blocks by dragging
- Custom settings for specific days of the week
- Week numbers displayed
- Full-featured calendar
- Option to open locations in other map apps
- More customizability in UI
- Better readability for low vision users
- Adjustable text size respecting OS settings
- More compact week view
- Display more event details in month view
- Quick access to distant calendar days
- Emojis in events
- Family planner in free tier
- On-device notes/non-login option
- Support for holidays by country/region
- Dark mode option
- Advanced analytics dashboard
- Ability to expand week view to include more than 8 hours
- Sync with other calendar apps
- More robust search functionality on mobile app

## Newest reviews (11 of 66)

### 4/5 — Event integration and repetition bugs

*2026-07-23*

Event integration from other websites could be easier (for now, as Tutacalendar cannot process iCal files, I first have to add events to my apple calendar and then import the calendar file into Tutacalendar on desktop as importing files is not possible on the mobile app…). Also, there are some bugs such as when adding a repetitive event (i.e. weekly), if it is later erased the app keeps sending reminder for inexistent events.

**Developer response:** Thanks for your detailed feedback! Just to clarify, Tuta Calendar now supports importing .ics files directly on mobile, so you no longer need to go through Apple Calendar first. You can also subscribe to public calendars via an ICS URL. We’re sorry about the recurring-event reminder issue and appreciate you reporting it. We’re continuously working to improve Calendar.

### 3/5 — Buggy, but works

*2026-07-23*

I keep having to reset the app everytime I want to add a calendar to this, bit annoying

**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.

### 4/5 — Watch Support

*2026-06-29*

I would love to see an App for the Watch.

**Developer response:** Thanks for your feedback and support of Tuta! We deeply respect your input, and we will try to combine your feedback with our roadmap, in order to provide a better experience!

### 3/5 — Left pane not shown

*2026-04-13, version 340.260326.1*

I have noticed that the left pane sometimes doesn’t show when I open the app via the widget.

### 2/5 — Catch import from Apple calendar

*2026-03-06*

I’d love to use this app, but I have too much data on my iOS calendar. If I could just import everything easily, I’d switch over completely, but I can’t see it a way to do that.

**Developer response:** Thanks for your feedback and support of Tuta Calendar! We deeply respect your advice, and we will try to combine your feedback with our roadmap, in order to provide a better experience!

### 3/5 — Beim Öffnen der App immer Agenda-Ansicht erzwungenermaßen

*2026-03-06*

Beim Öffnen der App öffnet sich immer die Agenda-Ansicht des heutigen Tages. Die Tagesagenda sehe ich aber ja schon im Widget. 
Ich wünsche mir, dass man einstellen kann in welcher Ansicht sich die App öffnet. Ich persönlich hätte gerne die Monatsansicht. Die muss ich immer erst mit zwei Klicks öffnen. Das macht die App für mich nur träge nutzbar.

**Developer response:** Vielen Dank für Ihren wertvollen Vorschlag! Wir werden ihn an unser Kalenderteam weiterleiten. Wenn Sie weitere Ideen haben, wenden Sie sich bitte an hello@tutao.de-. Wir freuen uns darauf, von Ihnen zu hören!

### 3/5 — Zero help

*2026-02-11*

I really want this to be my solution! Tuta has so much going for it, in theory. But both this and the mail app CONSTANTLY crash, usually after only 30-60 seconds at most. And for some reason my calendar events won’t show without a connection, and seem to have to reload every time the app opens, which makes it very slow and sometimes completely and painfully useless. 😭😭😭 Time based things i need to be able to act on need to keep existing on my device when the power is out, ffs. I’d be happy to try to trouble shoot whatever this mess is, I’ve tried to find any settings that might be in the way, but I cant fond anything, and they only provide support for the paid level. Which, I mean, I get valuing your time, but why would I decide to pay you when my experience of trying out the service is that it straight up frequently does not work? 😩 I have no basis upon which to place hope that it will work after upgrading.  And i know I’m not the only one struggling - there is a reddit forum that shows more ios users reporting constant crashing, but i don’t have an account so i can’t read the replies, only the complaints.

**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.

### 4/5 — Works great with one hiccup

*2026-01-29*

I really enjoy using this calendar an app. There are many options for customizing appointment types, reminders, repeating appointments, etc. easy to use and pretty intuitive. 
The big issue that I have run into is that is you have both the calendar and the email app on one device, you get double the reminders. The calendar app sends the reminder and the email app also sends a separate reminder for the same appointment. The repeat reminders make things a little confusing and cause a lot of notification traffic on my devises. 
Otherwise I live using!

**Developer response:** Thank you for your reporting this! We’ll share it with our calendar team. If you have more  issue or ideas, please feel free to reach out at hello@tutao.de!

### 3/5 — holidays

*2026-01-16, version 319.260107.1*

i love that it is private and secure and i am moving out of the us big tech sphere.... but there is not a single pre loaded holiday setup for this?? not eu holidays, not us holidays, nothing? you meant to tell me i have to put in every single holiday manually? id like a response, thanks.

### 4/5 — Love the privacy and like the usability, needs some tweaks and more customizability.

*2025-12-19, version 317.251217.0*

I really like Tuta!! I made the switch recently from Apple Calendar and Google. Love that it updates on all my devices while remaining private and secure. The calendar app could use some UI changes for more customizability. A setting for default appointment length would be great. Almost all my appointments are 1 hr long, but the default is 30 minutes. This gets a bit annoying. I would also like the option to color code an appointment on the same calendar. As of right now, I’d have to use a second calendar to get a different color for an appointment. Otherwise, love the app and am waiting on tender hooks for new UI/UX updates. Thanks all!

### 3/5 — Doesn’t save events?

*2025-09-07*

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.

## Most critical reviews (10 lowest-rated)

### 1/5 — Registrierung nicht möglich

*2026-07-30*

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?

**Developer response:** 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?

### 1/5 — not working-not a review

*2026-07-17*

Hey there, I’m not able to log into account just after creating it. Even though password saved. Not sure what to do, can’t even delete the address just created. I really just like support, but don’t know how to get it.

**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.

### 1/5 — Still crashes and account

*2026-06-11*

The fact that it still crashes and when managing to launch, requires an account is an absolute no go

**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.

### 1/5 — How is it ‘private’ and ‘secure’ when you ask for email?

*2026-06-08*

Makes no sense

Edit: thanks for the reply. To clarify, I can’t use the calendar without logging in. I don’t think an account is needed to put in my plans on a calendar

**Developer response:** Hi, we never ask for email, phone number or any other personal info. Could you please elaborate and report abuse via the app or at abuse@tutao.de.

### 1/5 — Keine Termine und leicht einen sitzen

*2026-04-25*

Tuta Kalender muss ein großer Fan oder Verehrer von Karl Lagerfeld sein. Anders kann ich mir nicht erklären, dass ich jeden einzelnen Tag als Ansicht in meinem großen Widget auf dem Startbildschirm erhielt: heute keine Termine mit einer kleinen Zeichnung von einem Mann, der zurückgelehnt in einem Sessel saß und sich anscheinend ein Gläschen genehmigte. Dass ich aber tatsächlich teilweise 3, 4 oder auch 6 Termine im Kalender drin stehen hatte? Das wollte mir weder das Widget noch die App so recht verraten, denn auch Benachrichtigungen oder Erinnerungen erhielt ich keine. 
Dasselbe übrigens auf meinem Android Smartphone und Android Tablet. 
Kurzum: Jetzt habe ich wirklich keine Termine mehr und Dank meiner neu gewonnenen Freizeit am Tage nun öfter mal leicht einen sitzen.

**Developer response:** 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 uns Ihren Fall genauer ansehen und Ihnen so schnell wie möglich helfen können?

### 1/5 — Calendar widget still not working

*2026-04-01, version 340.260326.1*

Calendar widget still not working

### 1/5 — Lost all my info

*2026-01-28*

Worked great until it started having issues saying ‘not online’ and lost all my important info. No update avail, and no help.

**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.

### 1/5 — NUL

*2025-09-03*

On ne peut même pas changer la couleur de nos évènements ???? 🙄
Mais c’est pourtant la base  🤷
Allez, au revoir

**Developer response:** Bonjour, 
Merci pour votre retour ! Actuellement, la personnalisation des couleurs des événements n’est pas disponible, mais nous prenons vos suggestions en compte pour de futures améliorations.

### 1/5 — Kein Familienplaner

*2025-08-30*

im Free-Angebot.
Da gibt es andere Anbieter die es besser machen.

**Developer response:** Danke für dein Feedback! Es tut uns leid zu hören, dass du mit unserem Free-Angebot nicht ganz zufrieden bist. Wir arbeiten kontinuierlich daran, Tuta in allen Plänen zu verbessern und hoffen, dich in Zukunft wieder überzeugen zu können.

### 1/5 — Buggy

*2025-08-13*

I like the app, but it’s very buggy. I’m automatically logged out and then when I go to sign back in, it says “invalid credentials” despite typing in the correct password. I tried uninstalling and then reinstalling the app and I was able to log back in, but you shouldn’t have to constantly do this. The widget also goes blank at times. Great company, but these issues need to be fixed.

**Developer response:** Hi there. This is odd. Please email our support team at hello@tutao.de and provide these details so they can help resolve the issue.

## Most praised reviews (10 highest-rated)

### 5/5 — Quick impressions

*2026-08-14*

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.

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

### 5/5 — Einfach aber genial

*2026-04-19*

Weiter so genau das was man benötigt. Cool wäre noch, wenn das icon auf dem iPhone das aktuelle Datum angezeigt.

**Developer response:** Vielen Dank für Ihren wertvollen Vorschlag! Wir werden ihn an unser Team weiterleiten. Wenn Sie weitere Ideen haben, schreiben Sie uns gerne an hello@tutao.de – wir freuen uns darauf, von Ihnen zu hören!

### 5/5 — Love it!

*2026-04-17*

Fully functional and calendar subscriptions work great. It's very streamlined. I like the color schemes and how you can toggle between the agenda view (which is new to me!) and the other time frames. The subscription system is nice, it allows me to nest my time organization, with my tuta calendar being the most micro and detailed. I am guessing I'll adjust to the minimalist framework and start to relax a little. Really impressed with everything tuta has created.

**Developer response:** Thank you for your wonderful review! Your trust in our secure and private mail and calendar service keeps us motivated every day.

### 5/5 — I'm so glad to have a private alternative!

*2026-04-05*

I'm very thankful that I have a calendar alternative that isn't connected to Apple or Google. I was using a paper calendar, but the phone reminders were something I missed

**Developer response:** Thanks for recognizing our efforts to protect your privacy. Your support and rating of our secure mail app mean so much!

### 5/5 — Ich liebe es 😍!!!

*2026-03-22*

Es ist eine super Kalender App. Mit viele Features, wovon aber viele leider ein Bezahltes Abo benötigen. 
Ansonsten ist es eine sehr gute App auch für den Gebrauch in der Familie!!!

**Developer response:** Vielen Dank für Ihr tolles Feedback! 😊 Es freut uns sehr, dass Ihnen die Kalender-App gefällt und Sie sie auch in der Familie nutzen. Die kostenlose Version bietet bereits alle wichtigen Funktionen, zusätzliche Features gibt es in den kostenpflichtigen Plänen. Vielen Dank für Ihre Unterstützung!

### 5/5 — Would like to have the ability to see holidays marked

*2026-03-15*

I understand that celebrated holidays may differ by country, but I would like to be able to select my country and have the major/bank holidays marked upon country selection. I’m also open to any other means of automarking holidays.

**Developer response:** Thank you for your rating and feedback. You can find .ics holiday calendars for your country online. Just search for “ your country + public holidays .ics” or use official government or calendar sites. Once downloaded, import it into Tuta via web/desktop app (Calendars → three-dot menu → “Import calendar”). Your suggestion for automatic country-based holidays has been shared with our Calendar team.

### 5/5 — Great app

*2025-12-13*

A really nice and well done app. Happy to use Tuta!

**Developer response:** Thanks for recognizing our efforts to protect your privacy. Your support and rating of our secure mail app mean so much!

### 5/5 — Top App !

*2025-12-02*

Mit Tuta Calendar habe ich richtig gute Erfahrungen gemacht und bin total zufrieden. Mir gefällt besonders, wie sehr sie auf den Schutz der Privatsphäre achten – das gibt mir ein echt gutes Gefühl. Genau deshalb nutze ich die App so gern.

**Developer response:** Vielen Dank für Ihre wunderbare Bewertung! Ihr Vertrauen in unseren sicheren und privaten E-Mail- und Kalenderdienst motiviert uns jeden Tag aufs Neue.

### 5/5 — Funktionalität top!

*2025-10-03*

Eine übersichtliche Kalender App. RSVP gemeinsame Kalender und Freigaben mit anderen Usern funktionieren in der bezahlten Version einwandfrei.

**Developer response:** Vielen Dank für Ihre wunderbare Bewertung! Ihr Vertrauen in unseren sicheren und privaten E-Mail- und Kalenderdienst motiviert uns jeden Tag aufs Neue.

### 5/5 — Improvements have been made!

*2025-09-08*

Will likely become my full time calendar app

**Developer response:** Thank you for your rating and constructive feedback. Much appreciated! We will continue working on it.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*