ICSx⁵ – Subscribe to calendars

4.2
232 reviews
10K+
Downloads
Content rating
Everyone
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About this app

ICSx⁵ allows you to add/subscribe and manage external (Webcal) iCalendar/.ics files on your Android device. One-way sync to your device.

Add high days and holidays, your sports teams events, time tables of your school/university or any other event files that come in ics/ical format. The app will import these events for you and displays it in your favorite calendar app on your Android – it integrates seamlessly into your device. ICSx⁵ uses state-of-the-art technology for synchronization that provides the ability that you always have the most up-to-date version of any added calendar file. All events are perfectly delivered to you devices calendar.

* Subscribe to Webcal feeds (= synchronize at regular intervals) e.g. shared calendars from icloud.com
* You can also pick .ics files from your local device and add its events to your calendar.
* Allows to open webcal:// and webcals:// URLs on your Android web browser
* Seamless integration to other calendar apps
* Set a sync schedule
* Intelligent update checker to save bandwidth
* Authentication and HTTPS supported
* Open Source!

We care for your privacy and have high security standards. Therefore we have made ICSx⁵ completely public and open source. No data (neither login data, nor calendar data, nor statistical or usage data) is transferred to anywhere except the chosen server. No Google Calendar or account required.

ICSx⁵ is being developed by open source enthusiasts who have also developed DAVx⁵, the award-winning open-source CalDAV/CardDAV sync adapter for Android.

Our homepage, including configuration info and FAQ: https://icsx5.bitfire.at/
For help and discussion please visit our forums: https://icsx5.bitfire.at/forums/
Updated on
Mar 24, 2022

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
No data collected
Learn more about how developers declare collection
4.2
232 reviews
A Google user
November 6, 2018
Update: it works until I change my password (at the source and in ICS) then it stops updating except when I restart the phone. Support guys were great, and we decided in the end that my firewall was blocking it. Workaround is that each time you change your password you have to uninstall and reinstall.
6 people found this review helpful
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bitfire web engineering
October 20, 2018
Joanna, if you change the password on your account you have to edit it in ICSdroid also, of course! Does it work when you adapt the password? If you need support please write us to play@bitfire.at. Thank you!
Carlos Munoz
November 10, 2021
It works at first but after awhile the sync stops and can't resolve the name. And the iCal events have changed but it doesn't reflect on calender in my Phone. 😭, Update - 11/2/21. Now my autosync is disabled with no reason. So I have to make manually update it. - Update 11/10/21 - I followed the instructions to make sure the app doesn't go to sleep but events that are on my calender will have been updated with new date and time won't reflect thru the app. Lost a star for it.
3 people found this review helpful
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bitfire web engineering
March 5, 2022
please update to version 2.0. Maybe it works better for you. please make sure you have enough disk space, otherwise the sync can be blocked by the system
A Google user
January 16, 2019
It works as advertised, very simple, light weight and convenient. Google needs to add a manual update schedule for their iCal sync. As another reviewer mentioned this app makes outside calenders much more useful for intergration with Google Calendar. Truly a hidden gem!
6 people found this review helpful
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What's new

2.0.2:
Use Work-Manager additionally to ensure sync is running
* handle exceptions without a main event
2.0.1:
* fixed a bug where credentials couldn't be entered
* COLOR property is now being parsed and pre-suggested when present in the ical file

2.0:
* NEW: allow local files to be synced via any SAF (Storage Access Framework) capable app (does not require external storage permission anymore)
* minor bugs and optimiziations