LemoNX
THE LEMONX FORK
Rendering options, controls, library customisation, and tools to look after your saves.
Availability depends on the build, device, and iOS version. Experimental graphics features are still being tested; check the release notes for known issues.
New · Setup
Run games without JIT. LemoNX compiles each game's code ahead of time and signs it on your device with the certificate you installed the app with, then runs it from those signed images. The first launch of a game prepares its code (about half a minute, shown on the loading screen); later launches only load it. Code mods and plugins, such as Skyline plugins for Smash, are prepared while the game runs. Requires your signing certificate (.p12) and its password. Setup ↗
New · Setup
On iOS 27, LemoNX can create the pairing file for its built-in JIT setup on the device: start pairing in LemoNX, then choose Pair with LemoNX under Developer Mode and enter the PIN. No computer needed. The file stays in protected app storage and is never sent to a server. Setup ↗
Online play
Connect to Nextendo for online play in supported games, with friends, chat, invites, and NAT checks. Requires an account and Online Mode enabled. Game compatibility and service availability vary.
Graphics
A rendering backend built directly on Metal 4, alongside the Vulkan options (KosmicKrisp and MoltenVK). Choose it under Settings > Graphics Backend, or per game. Still experimental: compatibility and performance vary by game and device.
Graphics
Experimental interpolation with LSFG and Apple machine-learning options on iOS 26+. LSFG requires your own compatible Lossless.dll. Generated frames improve displayed motion; they do not increase the game’s simulation rate.
Graphics
Adjust resolution while playing, use dynamic resolution, and enable MetalFX upscaling on supported iOS 26+ devices.
Saves
Browse earlier cloud saves with their date, device, and archive size. Before rollback, the current save is backed up and verified. Sync stays paused until you resume it.
Controls
Navigate menus with a controller and adjust deadzones, touch-control dimming, and phone rumble.
Controls
Map keys and mouse buttons, choose pointer or stick input, and keep separate mappings for individual games.
Library
Browse box art, organise games into categories, and choose covers, backgrounds, logos, and icons. Artwork downloads require your own SteamGridDB key.
Library
Keep favourite games close and track playtime, sessions, and recently played titles. Capture and browse screenshots by game.
Setup
A built-in setup path on iOS 26+ for compatible signing configurations. Requires Developer Mode, a pairing file (created on the device on iOS 27, or imported), and LocalDevVPN. Shortcuts actions can check the developer disk image before enabling JIT.
While playing
Adjust resolution, frame pacing, audio, and screen position in-game. Inspect frame-time graphs, shader counts, thermal state, and memory use.