---
title: "Proton Calendar: Secure Events — App Overview"
url: https://marlvel.ai/intel-report/productivity/proton-calendar-secure-events
category: Productivity
developer: Proton AG
platforms: ios, android
rating: 4.2 (7K ratings)
pricing: freemium
report_level: overview
generated: 2026-04-16
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers robust security and encryption, users frequently report a need for improved core functionality like search, drag-and-drop editing, and better color-coding options.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.2 ★ (7K) |
| Pricing | freemium |
| Platforms | iOS, Android |
| Latest Version (iOS) | 2.25.0 |
| Latest Version (Android) | 2.31.0 |
| Developer | Proton AG |

<!-- SECTION: Summary -->
## What is Proton Calendar: Secure Events?

Proton Calendar is a privacy-focused scheduling tool that provides end-to-end and zero-access encryption for event data. It offers standard time-management features like recurring events, multi-timezone support, and cross-device synchronization. The app distinguishes itself by operating under Swiss jurisdiction with a strict no-ads and no-tracking policy.

<!-- SECTION: Key Features -->
## Key Features

- **Privacy-First Architecture**: Utilizes end-to-end and zero-access encryption to ensure event details remain inaccessible to third parties.
- **Cross-Platform Sync**: Automatically synchronizes schedules across browsers and mobile devices.
- **Flexible Event Management**: Supports recurring events, multiple reminders, and appointment scheduling across different time zones.
- **Customizable Views**: Allows users to toggle between daily and monthly views, as well as light and dark mode themes.

<!-- SECTION: Target Audience -->
## Who is it for?

Privacy-conscious individuals and professionals seeking a secure, encrypted alternative to mainstream calendar applications.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/proton-calendar-secure-events/id1514709943?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=me.proton.android.calendar&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/productivity/proton-calendar-secure-events)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/productivity/proton-calendar-secure-events).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*