John NESS vs Provenance

John NESS is a free Android multi-emulator for Android 6.0 and later. It requires users’ own game files, searches internal storage and SD cards for them, and supports zipped files. The app uses an original engine with high-quality rendering and graphics enhancements. Save states include previews, while screenshots and speed controls cover slow motion or fast forward from x0.25 to x16. A virtual on-screen keypad has customizable keys and layout, plus turbo buttons. Bluetooth and MOGA controllers are supported. Dropbox support requires John DataSync. The app contains ads, with an in-app purchase option to remove them. Google Play reports no data collected or shared with third parties, while the maker’s privacy policy says Google Play Services and AdMob may collect information used to identify users. The developer is MOGORI WORKS CO., LTD. in Kobe, Japan, with support at [email protected].

Provenance is a free, open-source retro game emulator frontend for Apple platforms, available for iOS and macOS. It supports more than 38 console systems, including systems from Atari, Nintendo, Sega, and Sony. Its library can display automatically downloaded box art, screenshots, release details, ratings, and scanned manuals. Listed emulation features include save states, cheats, fast forward, shaders, visual filters, controller support, RetroAchievements, and multiplayer. Apple integration includes native tvOS, Apple TV TopShelf, Siri Remote, Spotlight search, Siri shortcuts, and iCloud sync; Apple TV supports MFi, Xbox, and PlayStation gamepads. Nearly all CD-based cores support CHD disc images, and the native Mednafen core has a custom CHD implementation. The source is published on GitHub under the BSD license. Installation options include the App Store, sideloading with AltStore or SideStore, and building from source. The free plan includes emulation features when sideloaded or built from source. Plus adds iCloud sync and priority support.