Who else instantly thought.. "Retro Infinity Player!" = WinUAE/UAE code based emulator hidden inside app installers with the original game ADFs? Basically the same as .exe packaged self executing game packages.
No mention of licensing the games for use or where the code has been created to emulate them.
As everyone else has said, this is a very poor attempt to make some cash out of the retro community. A community that is more clued up than most and already know they can emulate most Amiga games for free on their mobile devices.
Do some homework and you will discover that a large percentage of Amiga games are still owned and copyrighted. LucusArt based games are a great example of this as they will get whole projects closed down if their IP is found to be used. You have been warned.