One Calendar

In-app purchases
4.6
54.7K reviews
1M+
Downloads
Content rating
Everyone
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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).
Updated on
Feb 16, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
51.9K reviews
Meagan Medina Andrade
January 12, 2024
⭐ 4.5/5 ⭐ Love this calendar app for my needs. Easy to see as in I can make the background more opaque or transparent, the individual days are "outlined" (the color from the phone background comes through and acts as lines), the event colors are easy to see, and it seems with the last update, it is faster even on my almost 6 year old phone and I can now search past events. I do wish it was a bit more customizable but with the past update, I'm very happy with what the free version can do.
8 people found this review helpful
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Dave Stiffler
January 22, 2024
I needed a calendar app for my Android phone that would sync with my Yahoo calendar and eliminate dual events having to be entered. This app solved my issue. The app could use a little upgrade (ie designate an event as "busy" or "tentative") as well as improved HELP documentation to assist new users. In the mean time the app adequately supports my event scheduling and respective changes.
4 people found this review helpful
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Andrew
November 23, 2023
Purchased the app to sync with nextcloud calendars, which worked fine, but it lacks several features that ended up deciding were deal-breakers: 1. You cannot cancel an event, only delete. This is important if you want record of an event even if you no longer planning to attend. 2. Attachment support - useful for screenshots of tickets/QR codes, etc. in context with the event they'll be used for. Otherwise, I enjoyed using the app and the widget (one of the best calendar widgets!)
10 people found this review helpful
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What's new

Fix google bug