John NESS

What John NESS is

John NESS is a multi-emulator app for Android 6.0 and later. It runs game files that users provide, and can search both internal storage and an SD card for compatible files, including zipped files. Its original engine provides high-quality rendering, with graphics enhancements available. Players can save progress using save states that include previews, capture screenshots, and change gameplay speed from x0.25 to x16 with fast-forward or slow-down controls. The virtual on-screen keypad has customizable keys and a customizable layout, with turbo buttons included. Bluetooth and MOGA controllers are supported as alternatives to the on-screen controls. Dropbox support requires the separate John DataSync app. John NESS is listed as free with ads, and the listing says an in-app purchase can remove them. Google Play identifies the maker as MOGORI WORKS CO., LTD., and lists an address in Kobe, Japan. Its privacy disclosure reports that the developer says it collects no data and shares none with third parties; the maker’s privacy policy says Google Play Services and AdMob may collect information used to identify users.

Who it suits

John NESS suits Android users who want an emulator with configurable on-screen controls, save states, speed adjustment, and support for Bluetooth or MOGA controllers. It requires users to supply their own game files, and Dropbox use requires John DataSync.

Limits

The free plan contains ads; the listing says an in-app purchase can remove them. The app does not work without game files supplied by the user.

Getting started

1. Install John NESS on an Android device running version 6.0 or later.
2. Provide your own game files or let the app search internal storage and an SD card.
3. Load a supported game file, including a zipped file if applicable.
4. Configure the virtual keypad layout and keys, or connect a Bluetooth or MOGA controller.
5. Use save states, screenshots, or the speed controls as needed.

Verdict

Choose John NESS if you use Android 6.0 or later and want configurable controls, save states, screenshots, and adjustable playback speed. Look elsewhere if you need an emulator that supplies game files; Dropbox support also depends on John DataSync. The free plan contains ads, with an in-app purchase option to remove them.