A calendar is a record of your life: Proton Calendar helps keep it private.
Make the most of your time
- See your upcoming events as you like with agenda or day view
- View and reply to invites
- Events and invites are automatically added to your calendar from your Proton Mail inbox
- View your schedule in light or dark mode
- Add multiple reminders for your events
- Create recurring events on a daily, weekly, monthly, yearly, or custom basis
- Keep your calendar in sync across all your devices
Private by default
- No ads, no trackers, and no data harvesting
- We can’t spy on your calendar or misuse your data
- Protected by the same end-to-end encryption used in Proton Mail
- Event names, descriptions, and participants are stored with zero-access encryption
- Based in Switzerland, all your data is protected by strict Swiss privacy laws
People before profits
- Funded by users, not advertisers — Privacy is our business model
- Built by scientists and engineers who met at CERN and MIT and founded Proton Mail
- Used by high-profile journalists and organizations globally
What others say about Proton:
“Proton has now made it stupid-easy to encrypt your schedule. Information about what you plan to do, where, and with whom, can be just as sensitive as the messages you send and receive.” Gizmodo
Follow Proton on social media for all the latest news and offers:
Facebook: /proton
Twitter/X: @protonprivacy
Reddit: /protonmail
Instagram: /protonprivacy
EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula
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In-Apps
Proton Unlimited
USD 179.99
Mail Plus (1 year)
USD 69.99
Screenshots
Proton Calendar FAQ
Is Proton Calendar free?
Yes, Proton Calendar is free to download, however it contains in-app purchases or subscription offerings.
Is Proton Calendar legit?
🤔 The Proton Calendar app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.
Thanks for the vote
How much does Proton Calendar cost?
Proton Calendar has several in-app purchases/subscriptions, the average in-app price is USD 124.99.
As promised, rating restored to 5 stars now that dark mode icons are available. I’m not a developer, but this kind of update from a consumer felt like it took way too long.
Oh, the app? Fantastic. Other calendars should take notes.
Thank you for adding new features
I love that the team listens to customer feedback
Lacks functions and widgets
I see a lot of the functions I want have already been reported like calendar invite mgmt and scrolling through each single minute to set a time. My biggest problem is with the absence of widgets. I need a visualization on the homepage. See Google's app on android, but it doesn't translate to iphone. The calendar app named Across does all of this, and I just bought it. Now I regret paying the 2 years subscription for proton. Can you guys just buy the app Across and incorporate it into your secure programs? 😂😂😂
Needs work
You should be able to delete events on the calendar from the app. Found out today I had to open Proton Calendar in the browser to delete a recurring invite that I declined.
Can’t Change Overall Time Zone
I like the app but it won’t allow me to change the overall time zone. It only allows me to change it for each individual event.
Proof of Concept, Not Primary Calendar
Update: C’mon Proton, couldn’t care less about changing the icon shade - we’re still unable to change shared calendars, subscriptions, iPad is useless, and so much more on the app mentioned in other reviews. Email is great, Drive regularly improving, VPN is terrific, but with calendar being still at a proof of concept stage you’re forcing us to use Gmail and Apple. Kids and wife won’t switch because of considerable shortcomings. Please don’t respond with ‘we’re planning’ or ‘ you’ll pass it on’… tired of that. Just do it. BTW, been a multi-account subscriber since inception and considering moving my company (37 employees) to you, but Calendar has stopped consideration.
Details of the app’s shortcomings are detailed in other reviews. The lack of flexibility, options, and time zone settings make this unreliable as a primary calendar. Note, I’ve been a paying subscriber since inception. Email is unparalleled.
Please Add Widget Support and a Dark Icon
As the title suggests, please add widget support. I want the ability to look at my events right on the home screen. Thank you!
Time zone issues
When I downloaded the app it was set to GMT-0, and I cannot change the settings to match my own time zone. Reached out to support but didn't get a response. Needless to say, this app is unusable.
Update: I was able to update the time zone in a browser. The original support ticket I submitted via the app didn't give me a ticket number and I never got an email confirmation.
Great
Great, but needs dark mode icon & tasks integration. Month to month scrolling in month view should be vertical not horizontal; horizontal swiping can then be between calendar & task/to-do list. That would be fantastic.
Missing ability to edit shared calendar items
Update: Am leaving Proton Family at the end of this contract cycle. Too many half-baked products that never achieve basic functionality (‘coming soon’ is a lie) after literally years of hoping in vain. Good luck, Proton.
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Such a basic thing and I’m losing hope having waited so long that Proton will finally make it a reality.
Stop shipping broken products and expecting users to pay for an expensive service hoping in vain for years!
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