Honestly, accessibility is a great reason why emulation should be completely available, including JIT, on phones and tablets. I know, Androids can do them easily, but Android isn't quite as accessible as iOS for *me* yet, so this is how I cope.

You need JIT Streamer because Apple chooses not to allow apps besides their own to have access to use just in time interpreting, and ALTSTORE because Apple chooses not to allow installing of apps outside the App Store, at least in non-EU countries. The Gamecube and Wii emulator is Dolphin for iOS.

And a 4th one!