JB Workaround CardDAV-Sync is a free workaround app designed for Android users facing a bug in Android 4.1, also known as Jelly Bean. This app, developed by dmfs GmbH, is not a standalone application but rather a solution to a specific problem. The app is categorized under Business & Productivity and has no subcategory.

This app is a workaround for a bug that causes accounts of paid apps to be removed when Android boots up. The app pretends to provide the same account type that CardDAV-Sync provides, which is enough to convince Jelly Bean to keep the account. It does not have any additional features or functions.

To ensure that the workaround works properly, users are advised to open the app at least once from within Google Play. On some devices, users may need to install this app before CardDAV-Sync to avoid any problems. It's important to note that the bug is in Android 4.1, not in CardDAV-Sync.

If you're not using CardDAV-Sync on Jelly Bean, you don't need to install this app. Please don't give it a bad rating in that case. This app serves a specific purpose and is not intended for general use.