Simple Calendar is described as 'A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers' and is a popular Calendar app in the office & productivity category. There are more than 50 alternatives to Simple Calendar for a variety of platforms, including Web-based, Android, Windows, iPhone and Linux apps. The best Simple Calendar alternative is Google Calendar. It's not free, so if you're looking for a free alternative, you could try Google Calendar or Fossify Calendar. Other great apps like Simple Calendar are Calendar Lock PEA, Nextcloud Calendar, Apple Calendar and Right Calendar.
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!
Kolab provides a FOSS communication & collaboration solution that can be completely self-hosted. Take back control of your data and access it via the webinterface, or existing mobile & desktop clients.
Popular calendar app integrating Google, Live, Outlook, iCloud, Exchange, Office365, and Facebook into an easy overview. Manage appointments, events, and birthdays seamlessly with customizable views and notifications. Optimized for both personal and professional use.
Android calendar-app showing the weeks of the year (week numbers), 21 languages, syncable with Google Calendar:
Calendly can connect with up to six of your calendars to automatically check availability and help you connect with your best contacts, prospects and clients.
Zoho Calendar is an online calendar that helps you stay organised. Zoho Calendar makes scheduling events & appointments, sharing team calendar, booking resources easy & effortless. With over 15 million happy users, we are equipped to cater for different needs - Personal...
BusyCal is the most powerful, flexible, heavily customizable, reliable calendar app for macOS. It's packed with time-saving features and compatible with all leading cloud services including Reminders, iCloud, Google, Exchange, Office 365, Yahoo, Fastmail, Fruux, Kerio, Zoom...
Web-based time-management tool featuring appointment scheduling, sharing, reminders, to-do list integration, iCalendar file import, collaborative options, multiple calendar creation, recurring events, and cross-device access for both personal and organizational use.
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.
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...
Take control of your schedule and get reminded wherever and however you want. Instantly access your appointments, tasks, and notes with a simple glance at a transparent calendar that sits right on your Windows desktop.
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.
Germany
EU
Switzerland
Netherlands
United States
India
