ICSx⁵ - Subscribe to calendars
Publisher Description
Subscribe to Webcal & .ics calendars and keep them up-to-date!
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
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/
About ICSx⁵ - Subscribe to calendars
The company that develops ICSx⁵ - Subscribe to calendars is bitfire web engineering. The latest version released by its developer is 1.0 .
To install ICSx⁵ - Subscribe to calendars on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2025-12-16 and was downloaded 19 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the ICSx⁵ - Subscribe to calendars as malware as malware if the download link to at.bitfire.icsdroid is broken.
How to install ICSx⁵ - Subscribe to calendars on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the ICSx⁵ - Subscribe to calendars is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by ICSx⁵ - Subscribe to calendars will be shown. Click on Accept to continue the process.
- ICSx⁵ - Subscribe to calendars will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
System requirements
Download information
Pricing
Version History
version
posted on 2025-12-16
https://github.com/bitfireAT/icsx5/releases/tag/v2.4.3
version
posted on 2025-09-15
https://github.com/bitfireAT/icsx5/releases/tag/v2.4.2
version
posted on 2025-08-04
https://forums.bitfire.at/topic/1990/icsx-1-8-released
* add calendar: remember redirect only when redirect is permanent
* don't follow redirects from https:// to http://
* theme and dependency updates (including okhttp 4.8.0 and ical4j 3.x)
* gzip/Brotli support
ICSx⁵ now requires Android 5. For older Android versions, please use the ICSx⁵ versions before 1.8.8 (or upgrade Android, if anyhow possible).
version
posted on 2024-10-08
https://github.com/bitfireAT/icsx5/releases/tag/v2.2.5
version
posted on 2024-08-12
https://github.com/bitfireAT/icsx5/releases/tag/v2.2.4
version
posted on 2024-05-13
https://github.com/bitfireAT/icsx5/releases/tag/v2.2.2
version
posted on 2024-04-17
https://github.com/bitfireAT/icsx5/releases/tag/v2.2.1
version
posted on 2024-04-15
https://github.com/bitfireAT/icsx5/releases/tag/v2.2
version
posted on 2023-03-01
2.1.1: fixed a problem with migration
https://github.com/bitfireAT/icsx5/releases/tag/v2.1
* Android 13 compatibility
* [NEW] Add custom alarms to events that don't contain an alarm when downloaded
* Subscriptions are now handeled in our own database
* Subscriptions can now be backed up via Android Backup API
* Raise importance level of notification when unknown certificates are encountered
* improved handling of events that come from the server containing errors
version
posted on 2022-03-24
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