One Calendar

Code Spark

In-app purchases

About this app

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays.

OneCalendar is available on all platforms (Android, iOS, MacOS and Windows).

Ratings and reviews

Love this app. It is very easy to use and has lots of options to customize. It is making my appointments very easy to see and manage in one place. Thanks for this. Update: I am having trouble with getting my events (reservations and flights) that were synced from Gmail. These events appear in every other calendar app that I have, but not this one. This is frustrating. I reached out to customer support twice, but there was no response. I'm considering switching to another app.

Brings all my calendars together. you can't invite people from the app but you can share appointments and add people to events. for no apparent reason, it's not possible to edit an event and make it recurring, which is annoying if you add an event and then later want to make it a recurring event. but overall the app is intuitive and the widget works well for me.

Works well to sync Google calendar, Outlook and Windows 10 calendar apps. I haven't tried it with others. Syncs best if you enter the appointment in One calendar first. It doesn't always pick up entries that you put into other calendars. If you have multiple calendar apps on your phone, tablet or computer, it will result in multiple reminders. I don't know how to get around that. For reminders from OneCalendar you have to go into the calendar entry to change the reminder time. I have not found a simple way to delay the reminder when it appears. If you are out of cell coverage, calendar is slow to load because it cannot sync.

What’s new

16KB page support