Best Proton Calendar Alternatives (25)

Looking for a Proton Calendar alternative? We've compiled the best options based on user reviews, features, and pricing to help you find the right fit.

What is Proton Calendar? Proton Calendar is a free and open source calendar app created by Proton Technologies AG, the company behind the ProtonMail encrypted email service. It allows users to manage events and tasks with customizable reminders, inviting guests, event coloring, and accessibility features. As with other Proton apps, it has a focus on privacy and security of user data.

Top Alternatives to Proton Calendar

Amie

Amie

Open Source

Amie is an open-source personal assistant software that helps users manage calendars, emails, contacts, notes, and tasks. It has natural …

Zoho Calendar

Zoho Calendar

Freemium

Zoho Calendar is a free online calendar and scheduling service that allows individuals and teams to manage appointments, events, and …

fruux

fruux

Open Source

fruux is an open-source contacts, calendars, and tasks manager. It syncs data across devices and allows users to store contacts, …

Rainlendar

Rainlendar

Open Source

Rainlendar is an open source desktop calendar application for Windows, Mac and Linux. It supports calendar events, tasks, and weather …

Notion Calendar is a calendar and task management app for individuals and teams. It allows users to schedule events, set …

aCalendar

aCalendar

Open Source

aCalendar is an open-source calendar and scheduling application for Android. It features a simple interface for managing events, reminders, and …

Google Calendar is a free online calendar service provided by Google that allows users to create and edit events, set …

Nextcloud Calendar

Nextcloud Calendar

Open Source

Nextcloud Calendar is an open-source calendar and scheduling app that integrates with the Nextcloud file hosting platform. It allows users …

Calendarscope is a calendar and scheduling app designed to help teams and individuals manage their time more effectively. It allows …

Greg

Greg

Open Source

Greg is an open-source, cross-platform personal information manager and note taking application. It allows you to easily capture ideas, organize …

Kalendar

Kalendar

Free

Kalendar is an open-source calendar and scheduling application for Linux. It features a clean interface for managing events, tasks, and …

HEY is an email service developed by Basecamp that focuses on reducing email noise and improving productivity. Its key features …

Calendar Buddy

Calendar Buddy

Freemium

Calendar Buddy is a user-friendly calendar and scheduling assistant software. It helps organize appointments, set reminders, manage multiple calendars, and …

More Similar Software

Proton Calendar Overview

Proton Calendar is a free and open source calendar application developed by Proton Technologies AG, the company behind privacy-focused services like ProtonMail and ProtonVPN. It launched in 2022 as part of Proton's vision to create an integrated ecosystem of online services with a strong emphasis on security and privacy protections.Like Proton's other offerings, Proton Calendar utilizes end-to-end encryption to safeguard user calendars and event data. Events, tasks, and associated details are encrypted before they are transmitted and saved, ensuring that …

Pricing: Open Source

Quick Comparison

SoftwarePricingScore
Proton CalendarOpen Source
AmieOpen Source
Zoho CalendarFreemium
fruuxOpen Source
RainlendarOpen Source
Notion CalendarN/A
aCalendarOpen Source
Google CalendarN/A
Nextcloud CalendarOpen Source
CalendarscopeN/A
GregOpen Source

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