ICSx⁵ – Subscribe to calendars

ICSx⁵ – Subscribe to calendars

Screenshots

Description

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/

Developer

bitfire web engineering

Developer ID: 7085816884079006362

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Recent Reviews

Nuno Silva

v2.4.3

Sometimes it just stops working. I need to check it every morning to be sure it didn't stop updating my work calendar during the night for unknown reasons and without any error msg or log.

Apr 30, 2026

Iván Asenjo (Yohane)

v2.4.3

A bit shameful that Android still doesn't offer native Webcal support.

Feb 9, 2026

Roxanna Mohr

v2.4.3

I paid for this app but I have no idea what it does or what the point was of downloading it. Let alone paying for it...

Dec 28, 2025

Ivan Cameron

v2.2.7

I have setup ICSx⁵. It serves well to keep up with public holidays, etc. through WebCAL links. Support is excellent as well. Well worth its small price. I recommend it.

May 13, 2025

Linus Askerlund

v2.2.4

Excellent companion app to DAVx⁵. I use it to synchronizes a Birthday Webcal calendar that my server generates from my contacts.

Aug 26, 2024

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