Proton Calendar: Secure Events

Name: Proton Calendar: Secure Events
Rating: 4.25 (7733 reviews)
Author: Proton AG

By: Proton AG

Private calendar: Reminders, schedule planner, calendar widget, time-management

Features & Capabilities

Proton Calendar is a secure, easy-to-use planner and time-management tool designed for privacy-conscious users. It features automatic syncing across browsers and devices, support for recurring events, and timezone-aware appointment scheduling. Users can manage multiple calendars, set multiple reminders, and toggle between daily and monthly views.

What sets Proton Calendar apart is its commitment to privacy: it has no ads, trackers, or data sharing with third parties. All event details are protected by end-to-end and zero-access encryption, ensuring that not even Proton can access your data. Based in Switzerland, the calendar benefits from strong Swiss privacy laws. Its user-first approach is reflected in its funding model—supported by users rather than advertisers—and compliance with GDPR and HIPAA standards. Trusted by journalists and organizations worldwide, Proton Calendar is an excellent choice for anyone valuing secure and private scheduling.

User Growth & Download Statistics

App Privacy & Security Calendar

By:

Downloads:

Rating:

Version:

2.31.1 Last updated: 2026-05-27

Version code:

347

Creation date:

2022-04-13

Publisher country:

Permissions:

android.permission.CAMERA Very high risk
android.permission.READ_CONTACTS Very high risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.FOREGROUND_SERVICE_DATA_SYNC Low risk
android.permission.INTERNET Low risk
android.permission.POST_NOTIFICATIONS Low risk
android.permission.RECEIVE_BOOT_COMPLETED Low risk
android.permission.USE_BIOMETRIC Low risk
android.permission.USE_EXACT_ALARM Low risk
android.permission.USE_FINGERPRINT Low risk

Size:

123.21MB

Email:

su*****@protonmail.zendesk.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-07-04

Compare stats and ranking:

Ranking

# 63,958 ▲ 55

Other rankings

#15 in calendar keyword 28 #25 in button for google calendar keyword 37 ▼ 2

Other platforms

Proton Calendar: Secure Events (v2.25.1)

4.00

(1,331)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Proton AG

Google Play Store

https://play.google.com/store/apps/details?id=me.proton.android.calendar

Email:

su*****@protonmail.zendesk.com

Website:

https://proton.me/calendar

User Reviews

Reviewers like Proton Calendar for its intuitive UI and privacy focus, with a strong widget. However, the top recurring complaints are lack of search, slow performance, flaky widget behavior, and occasional user logouts, plus a demand for more widget options like a month view.

Pros

Intuitive, simple, and easy-to-use UI.
Privacy-focused design.
Strong calendar widget (excellent when functioning).

Cons

Lacks built-in search functionality (frequently requested).
Significant performance slowdowns when creating or updating events.
Widget reliability issues (loading/refresh problems).
Occasional random user logouts affecting reliability.

Recent reviews

Synchronization is very slow and is getting slower over the last 6 months.

Ed*****, 2026-06-21

I've been a paid proton customer for at least 8 years. On my previous device the calendar widget was great and well-optimised ito the space it took up on my home page. After getting a new device, the widget is enormous and cannot be sized- it takes up way too much space - even after adjusting the font size on my device.