Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Android
- F-Droid




Google Calendar is described as 'Manage events efficiently with device syncing, Gmail integration, event reminders, and shareable schedules on a user-friendly interface with dark mode' and is a leading Calendar app in the office & productivity category. There are more than 100 alternatives to Google Calendar for a variety of platforms, including Web-based, iPhone, Android, iPad and Mac apps. The best Google Calendar alternative is Etar, which is both free and Open Source. Other great apps like Google Calendar are Proton Calendar, Fossify Calendar, Tuta Calendar and Calendar Lock PEA.




The Designs.ai Calendar is an easily navigable collection of all major social media holidays around the world. Each listed holiday contains key information including a detailed description, celebrating countries, and relevant hashtags.



Unlike other calendar programs, Teamup does not require any user account. No signup, no login. Access to Teamup Calendar is as simple as opening a calendar link in your web browser. The calendar links can be shared with as many users as needed.




Keep track of all your Events with free SMS and Email notifications. Store and organize your Events and To-do on Ominder and never forget them again. Events include weather forecast for better planning.



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...




Day Peek helps you stay on top of your schedule. It displays a clock with your upcoming events in a colorful, floating widget that gradually fades in as the event approaches.




OfficeMail Pro, an email client app using ActiveSync is not only a secure and safe email client but also an app reinforcing a various convenience aspect. It is a product that has been significantly improved and implemented plenty of features like the shared mailbox and calendars...




Merge Calendar is a user friendly scheduling application. It is fully compatible with most digital calendar file formats. It is a great value in comparison to other scheduling applications. It is part of Merge Soft Office.




BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc...



Ajax enabled calendar control to build feature-rich event and booking calendars and schedulers in ASP.NET MVC and Web Forms.




InstaCal is an affordable, yet powerful calendar app that puts all your events right at your fingertips, always available in your Mac's menu bar. InstaCal is quick and convenient, and can be opened at any time with a configurable keyboard shortcut.


ScheduFlow Online allows you to manage schedules, calendars, contacts, and book appointments on any PC, phone, and tablet over the Internet. This desktop calendar software utilizes powerful cloud computing technology to put your data safely and securely on the Internet - making...


