By Proton AG
Report updated Apr 16, 2026
Proton Calendar: Secure Events
For privacy-conscious individuals and professionals seeking a secure, encrypted alternative to mainstream calendar applications.
Overview Β· Full Intel report in progress
Proton Calendar: Secure Events is an established productivity app that is free with in-app purchases. With a 4.2/5 rating from 8.2K reviews, it shows polarized user reception.
What is Proton Calendar: Secure Events?
Current Momentum
v2.25 Β· 3w ago
IntenseLast updated 22d ago. 5 versions tracked.
Competition
Rivals identification in progress
7-Day Rank Pulse πΊπΈ
ProductivityNo ranking data
Rating Pulse πΊπΈ
What makes this app unique?
What Does It Look Like?
How Is The App's Momentum Right Now?
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What Are The Key Features?
Utilizes end-to-end and zero-access encryption to ensure event details remain inaccessible to third parties.
Automatically synchronizes schedules across browsers and mobile devices.
Supports recurring events, multiple reminders, and appointment scheduling across different time zones.
Allows users to toggle between daily and monthly views, as well as light and dark mode themes.
How much does it cost?
Who Built It?
Proton AG
Providing a privacy-first ecosystem of productivity and security tools. Enabling users to reclaim digital autonomy from big tech.
Portfolio
12
Apps
Who is Proton AG?
Proton AG differentiates itself through a 'privacy-by-default' architecture that relies on Swiss jurisdiction and open-source transparency to build institutional trust. By bundling essential utilities like VPN, email, and password management, they have successfully transitioned from a single-product email provider into a comprehensive secure-productivity suite. Their primary strategic tension lies in maintaining high-performance UX standards while enforcing heavy end-to-end encryption across a rapidly expanding, cross-platform product set.
Who is Proton AG for?
- Privacy-conscious individuals
- Professionals seeking to minimize data exposure
- Avoid surveillance-based business models
Portfolio momentum
Released 48 updates across 12 apps in the last 6 months, demonstrating a high-frequency development cycle across their entire suite.
What other apps does Proton AG make?
Proton Mail - Encrypted Email
Proton Pass - Password Manager
Proton Drive: Privacy Storage
Proton Authenticator
Lumo AI by Proton
SimpleLogin - Email alias
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
Analysis in progress, available soon
What is the competitive landscape for Proton Calendar: Secure Events?
How's The Productivity Market?
Market outlook for this category
Available very soon
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for Proton Calendar: Secure Events
Key Takeaways
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.
Where Is It Heading?
Trend analysis
Available very soon