



Proton Calendar is described as 'Your calendar is a record of your life. Proton Calendar helps keep it private' and is a popular Calendar app in the office & productivity category. There are more than 25 alternatives to Proton Calendar for a variety of platforms, including Web-based, iPhone, Android, iPad and Mac apps. The best Proton Calendar alternative is Tuta Mail, which is both free and Open Source. Other great apps like Proton Calendar are Google Calendar, Tuta Calendar, Etar and Nextcloud Calendar.




Daybridge is a new calendar for Web, iOS and Android that will help you make time for what matters.




Calendarscope is a full-featured calendar software for planning, managing, and scheduling appointments, meetings, birthdays, vacations, special events. It allows you to view all your events in a daily, weekly, monthly, or yearly overview.








Create calendar events & reminders instantly by speaking, snapping photos, or pasting text or websites in multiple languages or use the AI scheduler to receive intelligent suggestions.




You can view an entire month or focus on a specific date and time.
You can also assign colors for different calendars and to-do lists, and drag-and-drop events between dates or years. Yahoo! Calendar gives you more control to share your calendars and events. You can control how.
Atomcal is an events management platform (calendar app) that allows you to connect with Google calendar in real time and have your events on the platform sync with your communities on Discord and Twitch.

Access your calendar via access links without a login. For your calendar you get several access links for which you can set individual permissions (e.g. read or write).


DNMX or Dark Net Email Exchange is a dark net email provider that allows anyone to create an email account anonymously and receive/send emails to the clear net.

