SNES 9x EX+

It's free, no advertisements, no unnecessary app permisions. Most of the other ones I've seen have restrictions unless you purchase, such as can't save, or can save but can't load. This allows save states, and automatically saves upon exit, making it truly mobile friendly. I can play some Zelda while waiting in line at the grocery store, and quickly shut it down when it's time to go without worrying about losing progress. It runs most of the things I've tried. Looking forward to letting this occupy my idle time while out and about.

What do you guys think? Have anyone found any other decent emulator apps?