Best Proton Calendar Apps

4.0😐(1.4K ratings)

FreeIn-App Purchases

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This app helps you manage your schedule with privacy in mind. It offers various viewing options, reminders, and recurring event creation. All your data is protected by end-to-end encryption and strict Swiss privacy laws, ensuring your personal information is not tracked or harvested.

What We Love

🚀 Intuitive interface
🔒 Secure and private
👍 Good integration with Proton suite
👍 Visually appealing design

Room to Improve

🐛 Slow performance and crashes
🔍 Lacking search functionality
📅 Missing advanced calendar views (week, month)
🔗 Limited integration with other calendars

Proton Drive: Cloud Storage by Proton AG

Private files & photos backup

Strong Contender

4.1😐(1.1K ratings)

FreeIn-App Purchases

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Securely store and back up your files and photos with end-to-end encryption. Access your content across devices, share securely with password protection, and enjoy peace of mind with Swiss privacy laws. Offers free storage with upgrade options.

What We Love

🚀 Fast and efficient
🔒 Secure and private
👍 Simple and intuitive UI
💡 Integrated with iOS Files app

Room to Improve

🐛 Buggy and unreliable
🔋 High battery consumption
📥 Slow upload/download speeds
🗂️ Lacking key features like search and sorting

Proton Mail - Encrypted Email by Proton AG

Fast, private, secure inbox

Worth Considering

4.8😊(47K ratings)

FreeIn-App Purchases

#56in Productivity

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This encrypted email service from Switzerland prioritizes user privacy with end-to-end encryption. It offers robust security features to protect your communications from phishing, spam, and tracking, allowing you to manage your inbox with ease.

What We Love

🚀 Smooth performance
🔒 Excellent security and privacy
👍 Clean and intuitive interface
💡 Expanding ecosystem of Proton services

Room to Improve

🐛 Occasional crashes and bugs
⏱️ Slow email loading times
📝 Lacking advanced email management features
💰 Expensive paid plans

More Proton Calendar apps to explore

Proton Authenticator

Secure 2FA Authenticator

End-to-end encrypted iCloud syncEffortless import from other authenticatorsSecure backup and export

Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.

(242)

Proton VPN: Fast & Secure

Safe and unlimited proxy

Unlimited data, no speed restrictionsStrict no-logs policyBypass geo restrictions

This app provides a secure, encrypted, and unlimited internet connection, protecting your privacy and unblocking content. It offers advanced security features and a strict no-logs policy, with both free and premium options available.

🔧 Utilities

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Proton Pass - Password Manager

Secure end-to-end encryption

Autofill loginsStore unlimited passwordsGenerate 2FA codes

Securely manage your online credentials with end-to-end encryption. This free password manager offers autofill, 2FA code generation, email alias creation, and data breach monitoring across all your devices. Protect your digital identity with robust Swiss privacy laws.

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Proton Wallet: Secure Bitcoin

A safer way to hold Bitcoin

Sole control of BTCIntuitive experience for newcomersSeamless multi-device support

This app provides a secure and user-friendly way to manage Bitcoin, giving users full control over their funds. It offers features like multi-device support, encrypted transactions, and a unique email-based sending option for enhanced privacy and ease of use.

Private Assistant from Europe

Privacy-first AI assistantBoost productivitySatisfy curiosity

This AI assistant prioritizes your privacy, offering help with productivity, curiosity, and staying informed. Developed by the team behind trusted encrypted services, it ensures your data remains secure.

(525)

Tuta Calendar: Secure Planner

Encrypted Events & Reminders

Quantum-safe end-to-end encryptionZero tracking and zero-knowledge architectureSecure event sharing

This secure calendar app offers end-to-end encryption to protect your events and reminders. It features a user-friendly interface, cross-device syncing, and smart reminders, with a free plan and optional premium upgrades.

For your work and life

Deep Google Calendar integrationConnect Notion docs and projectsMultiple time zone support

Manage your schedule and events with a unified view across multiple calendars. Integrate with your Notion workspace to link documents and projects directly to your events. Offers customizable widgets for quick access to upcoming appointments and event details.

The Shared Calendar for Groups

View and update multiple sub-calendarsCentrally manage calendar via browserGranular access permissions

This app facilitates efficient information sharing and task completion for groups through a shared calendar. It allows for organizing people, scheduling work, managing availability, and securely sharing events with teams or external parties.

💼 Business

(9.6K)

freemium

NordVPN: VPN Fast & Secure

Safe & Quick VPN, Best Privacy

Strong VPN encryptionThousands of VPN servers worldwideVPN auto-connect

Enhance your online privacy and security with a virtual private network. This app encrypts your internet traffic, shields your IP address, and protects your browsing from snoopers and cybercriminals. Enjoy fast, secure connections and access the internet with greater freedom.

Manage and share your time

Rotating period supportBlock schedule managementSocial schedule sharing

This app is designed for students to manage complex school schedules, including rotating periods and group events. It simplifies planning with friends and classmates, allowing users to share schedules and coordinate activities easily. Stay organized for high school and college with features tailored to student life.

Online business calendar

Multiple calendar views (day, week, month)Group calendar collaborationEvent invitations and participant management

This app is a collaborative online calendar designed for organizing personal and professional schedules. It allows users to create events, invite others, set reminders, and manage meeting rooms. Multiple views and widgets offer customizable organization, while offline access ensures availability without an internet connection.

(4)

Shamsi+ Calendar | تقویم پارسی

Persian Calendar |تقویم ایرانی

Lightweight and fast performanceBeautifully designed widgetsModern and user-friendly interface

This app offers a fast, lightweight, and beautifully designed Shamsi calendar with full Persian and Gregorian date support. It features customizable event selection, comprehensive event management, and modern, user-friendly widgets. Stay organized with its intuitive interface and updated holiday display.

🔧 Utilities

(449)

Morgen Calendar & Planner

Calendars & Tasks in one app

Consolidate all calendarsManage and schedule tasksShare scheduling links

This app consolidates your calendars and tasks into a single, powerful productivity tool. Schedule meetings, manage to-dos, share your availability, and join virtual calls seamlessly, all from your mobile device. It syncs with your existing calendars and task managers for a unified workflow.

(195)

Smart Calendar 2026: To-Do

Events, Reminders & To-Do List

Event managementReminder settingHabit tracking

This daily planner app helps you manage events, reminders, habits, and memos in one place. Stay organized with features like country-wise holidays, multi-language support, and reliable notifications for personal tasks, work schedules, and goals.

This calendar app organizes your schedule around days and weeks, reflecting how people naturally think. It supports habits, highlights important events, and accommodates flexible scheduling for tasks that don't have a fixed time. Enjoy a full-featured experience with unique twists on conventional calendar functions.

Weekly view focusHabit trackingEvent highlighting

2026 Calendar Planner,Reminder

Daily to-do listsMultiple calendar views (day, week, month, year)Notification reminders

This daily planner and reminder app helps you organize tasks, meetings, and events with customizable views and notifications. It offers to-do lists, checklists, and the ability to add locations and notes to your schedule.

(7)

100+ Years Myanmar Calendar

MM Calendar 100 years+

100+ year calendarPublic holiday trackingFull moon day identification

Access a comprehensive traditional Myanmar calendar spanning over 100 years. Quickly find public holidays, full moon days, and auspicious dates alongside their English calendar equivalents. Explore astrological days and traditional observances with ease.

(571)