N-EMU vs ScePSP

N-EMU is an emulator for handheld and console game systems on Android and iOS. It runs game files that users import and supports 11 systems, including Game Boy, Game Boy Advance, Super Nintendo, Nintendo DS, NES, Mega Drive, Master System, Game Gear, PC Engine, WonderSwan and PSP. The app is in closed beta, supports iOS 17+ and Android 10+, and is not publicly launched in app stores. It offers 10 manual save-state slots and one autosave slot, plus rewind of about 15 seconds on supported systems. Five speed settings range from 0.25× to 3×. Manual Google Drive backup covers in-game saves and save states, not game files. Up to four controllers can be assigned to players, subject to each game and system’s player limit. N-EMU requires no account and has no usage-record server, analytics tool or advertising SDK. The free plan costs nothing and has no in-app ads. A supporter purchase has no listed price and adds three home-screen icons, not emulator features.

ScePSP has no write-up on Specifiction yet; its figures are above.