Been setting up my tablet for #emulation and decided to try a frontend launcher called Daijisho. It's really good for a freebie; it supports just about every android RetroArch core and Emulator.

For my needs though, it a) can't view gaming systems as a grid/list, only games in a system, b) doesn't merge multiple .bin files in a game folder.

I've used LaunchBox, DIGG, and Reset Collection on my phone. Reset is still my go-to; customised with icons/banners from the LaunchBox forums.