249 reviews
Content rating
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About this app

CalendarSync syncs your appointments with CalDAV, FTP, HTTP, WebDAV servers, Cloudstorage, between calendars on your device, or with local files (stored on the device or e.g. as a mail attachment). A quick overview of the most important features is given below.

This is a free test version of the app. Use it to check out all its features for two weeks. To continue after the trial period you can get the full version directly from us (please contact us at calendarsync@gmx.at) or from https://play.google.com/store/apps/details?id=com.icalparse

You would like to access the next major update bringing a novel user interface, new features, and guidance/support system?
Then check out the open beta test here: https://play.google.com/apps/testing/com.icalparse.free

The app has been successfully tested with more then 50 different CalDAV Servers like Owncloud, Apple iCloud, Zimbra, OSX/iCal Server, eGroupware, GMX, Oracle Beehive, david.fx, Synology NAS, DAViCal, SOGO... You can find an overview here: http://ntbab.dyndns.org/apache2-default/seite/caldavprovider.html

⊛Comprehensive support - Questions or suggestions? Simply write us a mail.
⊛Syncs with many different sources - CalDAV, WebDAV, FTP, HTTP, WebCal, Cloudstorage, Local files, Between multiple Device Calendars, Mail attachments and many more. Of course, it also supports encryption and two way sync
⊛Fully supports the current iCalendar standard and partly the older VCalendar standard
⊛Complex configuration? No worries, the app guides you through all the steps
⊛Manage your calendars and create backups with just a few steps manually and even automatically
⊛Flexibility - There are already appointments stored on the device which should be pushed to the server? You need individual sync intervals for each of your calendar data sources? You want to exchange appointments between multiple servers and sources? No worries, this and more is possible!
⊛Designed for high speed calendar synchronization
⊛Seamless integration with your device and your preferred calendar apps
⊛Secure: All the sensitive information are encrypted before they are stored
⊛No secrets, you can - if you wish - always see what is happening and why
⊛Supports complex calendar situations and timezones, servers, and clients
⊛Supports self-signed certificates and client certificate based client\server authentication
⊛Unique solutions for a variety of challenges. You have special requirements? Then the app has likely a solution
⊛New device? Simply export\backup your configuration and import it on the new device
⊛Multilingual: Supports English, German, French, Spanish, Portuguese
If you are interested in translating the app then simply send me a mail

Interesting features for large-scale orders:
⊛Setup and configure your server connections through adb
⊛Licensing for large-scale orders

You can find detailed information to the permissions at our website.

You would like to get assistance? More details on the features or large scale orders are of interest to you? Then please contact us at calendarsync@gmx.at. Be aware, that if you just give us a bad review we can hardly help you as additional information about your configuration is required to provide assistance. We were already able to address tricky and unique scenarios, so simply contact us :)
Updated on
Oct 24, 2021

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
249 reviews
Juan Pablo Bigordá
July 30, 2020
Excellent! Works very well, does what's intended to. 4 stars because maybe it could offer an easier UI/UX. Nevertheless, the task of syncing / migrating / transferring a calendar is a bit of a complex one in and of itself and this app delivers. I used it to migrate my Samsung calendar to Google. It did have a small problem on repetitive events with rule exceptions for some of them, but I didn't really mind. (The app has options to deal with these and many others I just didn't try them.)
8 people found this review helpful
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A Google user
January 22, 2020
This app worked for me to sync my phone with my yahoo calendar. All other apps I tried in late 2019 failed because of yahoo changes earlier in the year. It did need some tweaking to make it work, but the customer service from CalendarSync was phenomenal - probably the best I've ever received. Thank you!
8 people found this review helpful
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André Srinivasan
June 27, 2020
I was looking for a way to sync some CalDAV/WebDAV calendars that GCal just couldn't get right. CalendarSync solved the problem. I agree with other reviewers that the UI is initially confusing; my first attempt to use the app failed. On request, the app will create an email and attach your config so you can get help from the developer. I took advantage of this and I now have a working configuration. And for a few dollars I can support a developer who has created an app that works and is not only responsive, but continues to follow through on questions.
6 people found this review helpful
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What's new

Google forces us to ask for additional permissions. Those become relevant if you want to perform automatic syncs only if your device is connected to a specific WIFI network. Being able to identify that network could theoretically be used to locate your device. Hence, we now need to ask for permissions related to location services - although the app will never determine your location.
For details on the additional features that were added please check out the change log in the app settings.