Thanks for your great support
I will recommend LYSESOFT !

There isn't any Error message at all, so i can't find the root cause of the problem. But one basic question relating to "S3 URL" : Is the URL solely meant for "s3.amazonaws.com" or can i change it for my cloud-hoster (http://cs.hosteurope.de) ? My Hoster advised me to use your app on android phones....

I've just bought the pro version. Unfortunately, the application doesn't show any bucket, though all settings are correct. Is there a chance of creating a log-file after having connected to the cloud to see what's going wrong? At the moment I'm deeply disappointed cause I can't find out what's going...