Actually, I found HP emulators to be really good. On my iPhone, I use HP-12C emulator from RLM Tools (I found most other emulators to be inferior). When I real

Actually, I found HP emulators to be really good. On my iPhone, I use HP-12C emulator from RLM Tools (I found most other emulators to be inferior). When I really need it, I use HP50G. On the iPad, I use either m48+ or HP50G (it seems to be another fork of the emu48 code). Both work really well given the size of the iPad — very comfortable to use.