ICSx⁵ – Subscribe to calendars

23.6K installs
322 ratings
1.1K monthly active users
Revenue not available
Install Trends
Weekly +94
Steady
Monthly +301
Steady

ICSx⁵ – Subscribe to calendars Summary

ICSx⁵ – Subscribe to calendars is a mobile Android app in Productivity by bitfire web engineering. Released in Aug 2015 (10 years ago). It has about 23.6K+ installs and 322 ratings with a 4.37★ (good) average. Based on AppGoblin estimates, it reaches roughly 1.1K monthly active users . Store metadata: updated Dec 16, 2025.

Recent activity: 94 installs this week (301 over 4 weeks) showing steady growth View trends →

Store info: Last updated on Google Play on Dec 16, 2025 .


4.37★

Ratings: 322

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Screenshots

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App 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/