This app allows you to organize, by defining conditions, rules and profiles, the synchronization of the different accounts that you've configured on your Android device.

For example, you can configure it to not synchronize your work account when you are in your house (a simple rule based on a cell phone anthenna or wifi network name) or, to only synchronize one of two devices if two devices are close (a rule based on the bluetooth), they share, thus avoiding the double notifications.