Best All-Around & Cross-Platform Emulator: RetroArch
RetroArch
Cross-platform support.
The emulator can be tough to learn due to its many options.
RetroArch is one of the biggest names in emulation, and for good reason.

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There’s built-in controller support, plus RetroArch can record andstream gameplayto services likeTwitchandYouTube.
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Best Emulator With a Classic Feel: Snes9X EX+
SNES9x EX+
No in-app purchases.
Supports most emulation file types.

RetroArch
The on-screen game pad leaves something to be desired.
Snes9x EX+ has been around since the early days of emulation.
Like RetroArch, it’s open source and free to use.

SNES9x EX+
It supports gamepads, and most major emulation file types and has decent on-screen controls.
Best for NES and SNES: John NESS
APK Pure
Two-for-one emulation.
There is a free version of the emulator.

APK Pure
you’re able to only get rid of ads by paying a fee.
John NESS combines NES and SNES emulators from the well-known emulation company John Emulators.
Alongside RetroArch, John NESS is one of Android’s most acclaimed emulation options.