Hi, anwar saheb
Seems, you´re absolutely right.
As far as I can read from their board, many are complaining, that the app doesn´t work, although they even paid 5 € for it.
Some users on the german pages are even maintaining, that the domain "airplayer.biz" would get closed at the end of this month, but the webmaster denies this.
I don´t know what´s going on there. Doesn´t look good
Hopefully they go on with support ...