Proton Calendar: Secure Events

Proton Calendar: Secure Events

Proton AG · 4.1 ★ · FREE

Screenshots

Description

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

Developer

Proton AG

Developer ID: 979659484

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What's New

Version 2.25.0 · Mar 25, 2026

Minor fixes and improvements.

Ratings & Reviews

App Store

4.1

192 ratings

N/A downloads

Google Play

4.3

7,383 ratings

1,000,000+ downloads

5★
66%
4★
12%
3★
10%
2★
6%
1★
6%

Recent Reviews

Catherine Rey

Google Play

Clair et facile d utilisation

May 23, 2026

Jean Hutcher

Google Play

When will the search function be added to the Android app? It’s the only feature still missing that would allow users to do without Google.

May 22, 2026

Hervé Maugendre

Google Play

très très bonne alternative aux BIG BROTHERS Américains

May 16, 2026

Chantal Boyer

Google Play

ça buggue souvent. actuellement impossible d'avoir accès au + pour ajouter un évènement. il faut appuyer 7 à 10 fois sur le bouton de mise à jour pour qu'elle se fasse sur le widget. laborieux, c'est dommage

May 13, 2026

Jérémy Frey

Google Play

Manque juste une vue mensuelle en widgets et ça serait très bien

May 13, 2026

LeighIsMe

App Store

Why no search?

Lumo says it should exist, but it doesn’t. Searching my calendar is a must-have feature.

May 6, 2026

natureXpert

App Store

When connecting to my ProtnMail, I should see a short calendar event description.

There is something missing from Proton Calendar. When I take a look to all my emails and see a few email notifications, I have to click on each one because there is no description of what this email notification is about. Google Calendar let us see what our emails notifications are without having to click on it. You should do the same.

Apr 15, 2026

<3.Apple

App Store

Calendly Integration Request

I’ve degoogled my life and moved to Proton fully, however this isn’t without some challenges. If you could please add Calendly integration to the priority list. It’s already iCS compatible and would be a HUGE quick win your customers who need booking coordination with clients

Apr 2, 2026

m.l.sully

App Store

Give me more!

Love the iPhone app but without a partner app for Apple Watch, it’s less useful. I rely on my watch for appointment alerts all day every day so this would be a key integration for me.

Jan 24, 2026

wpvins

App Store

bad after sale support

rip off. go with tuta.

Dec 4, 2025

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