Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux



Apps similar to One Calendar include Google Calendar, which is free for personal use. Other options are Fossify Calendar, Microsoft Outlook, Apple Calendar and Simple Calendar. You're spoiled for choice with Calendar Apps like One Calendar: we list more than 50 alternatives for the web, Android, iPhone, Windows and Mac.
Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.



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.

Me Calendar is a user-friendly calendar app equipped with widget support. Seamlessly integrate with Google Calendar, Microsoft 365, Outlook.com, iCloud, CalDAV, and WebCAL.




A booking experience your clients will love. For small businesses, first impressions matter. YouCanBookMe is the most personalized meeting scheduler you can use to build your business. Bookers can overlay their availability to find the best time to meet. Powered by Capacity.




Yearli offers a clean yearly calendar view for your Apple & Google Calendar events. Sync your calendars, create custom views and see your entire year at a glance.




Cozi is a free online calendar that helps families coordinate activities. See who needs to be where and when, be reminded of upcoming appointments, and print your calendar by week or month. Cozi is the easiest online calendar you'll ever use.




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...




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.



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.




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.





