Hello, first of all, I am new to the forum and please forgive me if I opened the topic in the wrong place I love the Poweramp application. I bought both the equalizer and the normal one from the play store. Also today, I repurchased the non-play store direct version for my Android 6 based mp3 player. What concerns me is that I heard about feature packages. In this case, will we have to constantly pay money for the application? Will the licenses we purchased for a fee become invalid? Could you give me detailed information about this, please? Thanks.