It's a SyncML client for synchronizing calendar and contact data with a SyncML capable server, like for example eGroupware.This particular app is based on Funambol, but provides some serious improvements:1.) It actually runs in Android 4 and above2.) Accepts any SSL-certificate for HTTPS, so it may even be used with self-signed server certificates3.) no Funambol account needed4.) Focus on the job: Nomore music or image or file sharing just PIM synchronisation