Apps similar to Nextcloud Calendar include Tuta Mail, which is open source with a free version. Other options are Google Calendar, Proton Calendar, Fossify Calendar and Tuta Calendar. There's no shortage of Calendar Apps like Nextcloud Calendar, with more than 25 alternatives for Android, the web, iPhone, Mac and Windows.
Rainlendar is a feature rich calendar application that is easy to use and doesn't take much space on your desktop. The application is platform independent so you can run it on all major operating systems: Windows, Linux and Mac OS X.
Finland
EU
CalDAV and CardDAV server for calendar and contact data based on PHP, SQLite/MySQL, and SabreDAV
FranceEU
This app is tailored for families, couples, friends, and groups, providing end-to-end encryption for secure data, seamless calendar creation, syncing, private chats, and widgets for easy access, ensuring you never miss an event.
United Kingdom
Merkuro is a calendar and contact application that allows you to manage your tasks, events and contacts. Merkuro supports both local calendars as well as a multitude of online calendars: Nextcloud, Google® Calendar, Outlook®, Caldav, and many more.
GermanyEU
fruux is a free service that takes care of your contacts, calendars and more so you don't have to. Never manually copy contacts and calenders between your devices again!
GermanyEU
Amie is a productivity application that facilitates task, event, and contact management, integrating a scheduling feature for task and event time allocation, and effectively transforming the calendar into a todo list, with color-coding for improved organization and visual...
GermanyEU
End-to-end encrypted sync for calendar, contacts and tasks. Integrates with your existing apps, data is encrypted on your devices before it ever reaches the server.
United States
HEY Calendar is a digital scheduling tool designed with a unique approach to managing time and tasks. It offers a feature that allows users to rename days according to their significance, such as designating a day as 'Travel day', 'Anniversary', or 'No work...
United States
Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.
lightweight, client-only calendar web application. All data persists in the URL hash for instant sharing, No backend required. Optional AES-GCM password protection keeps shared links locked without a server.
Sri Lanka
newDay is an experimental timekeeping and calendar system that helps users to set intentions for each of the ten newHours that comprise a newDay.
Your daily schedule is created from your logged Activities. Comfortably browse what activities you have planned for the day on the main “day” page. Watch them light up as you go through your day and collect streaks for each day you plan.
