• ICSdroid – sync Webcal/.ics 1
  • ICSdroid – sync Webcal/.ics 2
  • ICSdroid – sync Webcal/.ics 3
  • ICSdroid – sync Webcal/.ics 4

ICSdroid – sync Webcal/.ics

ICSdroid allows you to add/subscribe and manage external (Webcal) and local (i.e. Dropbox, adb push etc) iCalendar/.ics files on your Android 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. ICSdroid 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
* Subscribe to local .ics (iCalendar) calendar files
* 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 ICSdroid 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.

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

Our homepage, including configuration info and FAQ: https://icsdroid.bitfire.at/For help and discussion please visit our forums: https://icsdroid.bitfire.at/forums/

Category : Productivity

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Reviews (27)

Joa. L. Nov 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.

Car. M. Nov 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.

Chr. P. Mar 9, 2020     

It works for my Sonarr calendar, but once a day when it's set to automatically sync it gives me an error notification. Then when I press the notification, go in the app and pull down to refresh, it just works again.. any ideas? Thanks.

Pet. H. May 17, 2020     

Although this app is free, it just doesn't work. It just constantly looses and deletes the ical URL. So totally pointless and not worth trying. More frustrating than useful. Update... its when the phone is put on power saving mode that the URL is lost. Update to developers comment 17/5/20... surely there is a workaround for this? Store the URL text somewhere else so it can be simply copied back easily to correct it? But other similar apps work so what are you doing differently?

Art. B. Apr 1, 2021     

If needed, the app DAVx5 may request the install of the app ICSx5 to allow the sync of some shared calendars. Once installed, this app will work with DAVx5. Since DAVx5 and ICSx5 installed, all my calendars are well synced, both my personal and shared calendars. Thanks to the dev's !

Kub. M. Feb 24, 2021     

Thank you for making it. Apparently this (syncing a web calendar every 15 minutes) is something that is beyond the ken of the likes of Google, Microsoft and Samsung. Well worth the small price (more like donation, really).

Tre. K. Jun 16, 2019     

Does exactly what I needed to it to do. One thing I would like to see is to be able to set the sync time per calendar subscription, not just a rule for all.

Pac. B. Dec 24, 2021     

Saw comments regarding business calendar 2 and wanted to avoid Google and 24 hr calendar url update. This app worked immediately. Straightforward.

SKW. May 11, 2019     

Superb app, lightweight and efficient. well worth paying for. Been looking for a simple Android app to do this job, without success until this excellent app. Well done to the developers.

Jer. B. Jul 10, 2019     

This does exactly what it said it would. It syncs my work calendar by periodically downloading an ICS

Jus. R. Nov 24, 2019     

Great ics calender syncing tool. Worth the $1.49 they charge for it

Mar. W. Mar 18, 2019     

exactly what I need..let's you add calendars from other apps and websites easily

Don. R. Mar 8, 2021     

Won't sync calendars despite hours of changing settings as recommended.

And. S. Oct 19, 2018     

Works great with Office 365 published calendar

Sco. H. Jul 30, 2021     

Seamless integration with davx5. Nice job!

Kel. O. -. P. Jul 27, 2021     

Does work, can connect 😉 using with ProtonCalendar and it's 5 🌟 s from me

Dan. V. May 29, 2021     

Doesn't work. Can't connect.

Dan. U. Jan 7, 2020     

Installed and Just works. Thanks.

Edv. B. Nov 14, 2018     

Does nothing hated it!

Jes. W. Oct 7, 2020     

Does what it says, no more or less.

Pla. Mar 12, 2020     

Unfortunalety I get connection error notifications all the time (using it to sync teamup calendars). Once a server connection is established, everything works fine. Very annoying behavior, uninstalled it again!

Kon. O. Jul 20, 2018     

latest update broke sync. complains about timezone being null

A. G. u. May 7, 2018     

Works as advertised and that's all I need :). Nice to see the app is being updated to iron out minor quirks every now and then.

Chr. Mar 10, 2018     

All I searched for!

Jon. Oct 5, 2017     

Worked immediately and without fail. It integrated my internet calendar with the app I use for calendars. Perfect!

Dan. L. Aug 25, 2016     

I've tried a whole bunch of ICS sync apps, to avoid having to submit to my company's BYOD policy for Office365, and this one works the best IMHO. I'd happily give the final star if you could add the ability to set a default per-calendar reminder time for each appointment it syncs down. It's a little frustrating not getting reminders on my phone for work appointments, when I'm away from my desk for prolonged periods. Bonus points if you could add some sort of capability to add a filter to NOT add such a reminder, eg. if I just block out some time on my work calendar, let me put NOALARM in the subject, or something, to avoid setting a reminder for that specific appointment.

Car. W. Mar 8, 2017     

Exactly what I need, except I would appreciate if it had the ability to put a shortcut on the home screen to refresh the calenders.