Proton Calendar: Secure Events Icon

Download Proton Calendar: Secure Events APK 2.28.0 arm64-v8a, armeabi-v7a, x86, x86_64 · Android 23+

By Proton AG • Updated June 01, 2026
Productivity arm64-v8a, armeabi-v7a, x86, x86_64 Native (Java/Kotlin) 123.08 MB
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This is the arm64-v8a, armeabi-v7a, x86, x86_64 build of Proton Calendar: Secure Events 2.28.0. Pick this build if your device's primary ABI matches.

File size: 123.1 MB   •   Min Android: 23   •   Target Android: 35   •   Version code: 329   •   Framework: Native (Java/Kotlin)   •   Permissions: 15

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File Information

Package Nameme.proton.android.calendar
Version Name2.28.0
Version Code329
Architecturearm64-v8a, armeabi-v7a, x86, x86_64
Min Android VersionAndroid 23 (API 35)
Main Activityme.proton.android.calendar.presentation.main.MainActivity
FrameworkNative (Java/Kotlin)
File Size123.08 MB
Signature (SHA1)D8E1EE3FF3A7F6EC46883C898032FE03C23EEC20
File Hash (SHA256)28432a97c52b93eb066a291696a21bc2f829e99e1289d3407b3d8e071e3de629

What's New

Minor fixes and improvements.

App Description

Proton Calendar is an easy-to-use planner and a time-management tool that keeps your schedule private

Additional Highlights

✓ Schedule planner syncs automatically across browsers and devices

✓ Create recurring events on a daily, weekly, monthly, yearly, or custom basis

✓ Use as an appointment scheduler in local or foreign time zones

✓ Manage up to 20 calendars (paid feature)

✓ View your agenda from the home screen with the Proton Calendar widget

✓ Add multiple reminders for any event

✓ Use as a daily planner or monthly planner by switching between different views

✓ Choose to view your event schedule in dark mode or light mode

PRIVATE CALENDAR

✓ No ads, no trackers, and no data sharing with any third parties

✓ We can’t spy on your activities or misuse your data

✓ End-to-end encryption — fully encrypted data exchange between Proton Calendar users

✓ Zero-access encryption — event names, descriptions, and participants are encrypted on our servers

✓ Based in Switzerland 🇨🇭 — All your data is protected by strict Swiss privacy laws

USERS FIRST

Building an internet that puts people ahead of 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

✓ GDPR and HIPAA compliant

✓ Based in Switzerland and protected by some of the world’s strongest privacy laws

What others say about Proton Calendar

“Proton Mail 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
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APK Permissions 15

  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_DATA_SYNC
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_CONTACTS
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.SCHEDULE_EXACT_ALARM
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_EXACT_ALARM
  • android.permission.USE_FINGERPRINT
  • android.permission.WAKE_LOCK
  • com.android.vending.BILLING
  • me.proton.android.calendar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Frequently Asked Questions about Proton Calendar: Secure Events APK

This variant is built for devices that report `arm64-v8a, armeabi-v7a, x86, x86_64` as their primary ABI. If your device's CPU matches, this is the smallest, fastest version to install.

Yes — the APK's signature has been cryptographically verified against the publisher's signing key. The SHA-256 hash is shown in the File Information panel so you can independently confirm the file matches the original release.

Android 23 (API level 35) or newer. Older devices will refuse the install.

Install a free app like 'CPU-Z' or 'Droid Hardware Info' from the Play Store and look at the ABI / Instruction Set row. Most phones made after 2017 are arm64-v8a; if in doubt, download the universal variant.

All variants are functionally identical — same features, same version. They differ only in which CPU architectures the native code is compiled for, and (sometimes) which screen densities the included graphics target. Pick the one that matches your device for the smallest install size, or pick 'Universal' if you're unsure.