Proton Proton Calendar: customer experiences
Reviewers report mixed experiences with Proton Calendar, with roughly equal numbers of positive and negative mentions, 255 positive and 261 negative out of 2124 total mentions. The overall sentiment leans slightly negative, particularly around functionality and usability, though many users appreciate its privacy-focused design and clean interface. Over time, there is no available monthly history to track shifts in sentiment, but recurring complaints suggest long-standing issues. Users frequently cite missing features like search, recurring event customization, and poor mobile integration. On the other hand, those who value privacy and simplicity often praise the app’s clean UI and secure handling of data. The balance between praise and criticism remains stable, with no clear trend toward improvement or decline in recent feedback.
What customers praise
Many users appreciate the clean and intuitive user interface, calling it visually appealing and well-balanced for a privacy-first calendar. Several reviewers highlight the strong security and zero-knowledge encryption as key reasons they choose Proton Calendar over alternatives. The ability to import calendars from Google and add custom colors to events is also frequently mentioned as a positive feature. Some users even recommend it to friends and have signed up for Proton subscriptions based on their experience.
What customers said:
- „I tell all my friends to use ProtonCal“
- „It was super EASY to import my old calendar from Google.“
- „could you please consider to add a monthly view version please“
Common complaints
Users frequently report that Proton Calendar lacks essential features like a search function, recurring event options, and the ability to set the calendar as the default on mobile devices. The app is criticized for being slow, especially when creating or editing events, and for not supporting offline event creation. Some users also note that alarms are silent by default, and the UI breaks in windowed mode on desktop. The absence of a monthly view widget and the inability to move events by dragging them are also common frustrations.
What customers said:
- „Very basic and no search“
- „I don’t think any of their apps have had an update.“
- „Why creation of an event takes like 5 seconds and isn’t instant?“
How it has changed over time
There is no monthly history available to assess changes in user sentiment or feature development over time. However, several reviews from years ago mention long-standing feature requests, such as a copy entry option and a monthly view widget, that remain unaddressed. This suggests that the core functionality has not evolved significantly despite user feedback. The lack of updates to the app’s interface and performance, as noted by some users, indicates a stagnation in development, even as competitors improve their offerings.
What customers said:
- „Nearly 5 years ago I first asked Proton to please put a copy entry option in the app“
- „Only calendar app I know which has no widget for a monthly view“
- „The app is still quite slow (given the encryption I’m sure).“
Practical takeaways
Proton Calendar is best suited for users who prioritize privacy and are willing to accept basic functionality in exchange for strong encryption. It works well for simple personal use, especially for those already invested in the Proton ecosystem. However, users needing advanced features like search, recurring events, or mobile integration may find it limiting. The app’s slow performance and lack of offline support can be problematic for daily use. If you value security over convenience, it may be a good fit, but those needing a full-featured calendar should consider alternatives.
What customers said:
- „UI is pretty good“
- „this was a great app“
- „I would love if one could add events by clicking the time slot on a day.“
Customer voices
Short excerpts - full reviews are available at the original source.
„I gave it 3 stars because it isnt fully functional and have gone back to apple calendar which does provide this feature.“
„a fine comprimise for zero knowledge personal and shared calendars“
„the safety is better than any calendar on the market“
„Several days later, I noticed all of my events were encrypted and I could not access them.“
„The public holiday calendar of many countries is missing.“
„you can’t do basic things - like set Proton Calendar as your phone’s calendar application.“
„User experience is noticeably worse than with Google calendar.“
„LOVE that I can add colours to my calendar entries now!!“
What Reddit users discuss
Below are extracts from Reddit which discuss Proton Calendar in more detail - each linked to the original thread.
„Proton Calendar is, without a doubt, one of the most solid solutions for those who want to protect their privacy.“
„Right now Proton Calendar feels unfinished“
„The calendar is driving me nuts.“
„Proton's Mail & Calendar combination is just not good“
„we are currently rebuilding Proton Calendar from the ground up across iOS, Android, and Web.“