As of today the 2nd of August 2015, FilePush for Android is shutting down. The main reason is that I'm working on a new version of the app and I don't have time and resources to support the old app and keep the server running.
The new app will feature P2P connection, cross platform support (web & android app), new design, sending files to other users etc.
You can expect a beta of the new app soon™. The new app will be hosted at filepush.io
If you recently bought the full version of the android app just shoot me a mail at firstname.lastname@example.org
and I will look into refunding it.
Thanks to anyone who has ever used my app, it has been a pleasure!