MEKA vs Retropa

MEKA is a free multi-machine emulator for Sega 8-bit systems and ColecoVision. It supports the SG-1000, SC-3000, SF-7000, Mark III, Master System, Game Gear, ColecoVision and Othello Multivision, along with a wide range of peripherals and unusual games. The project includes a debugger and tools for debugging and hacking, aimed at programmers and people working with Sega 8-bit systems. It also provides a game database and compatibility list, which the site describes as receiving fixes and changes. MEKA is free software under a BSD-like license, and its source and data may be browsed and reused without restrictions. The download page lists a Windows x86 build and directs GNU/Linux and macOS users to build from source. That page describes MEKA 0.80 as in development, while the GitHub releases page lists Meka 2025-08-17 as the latest release. Initiated in 1998, the project is maintained by Omar Cornut, known as Bock. The project says it has limited use for the average player.

Retropa is an emulator for handheld and arcade games on iPhone and iPad, with Mac listed among its supported platforms. It covers 14 handheld and console systems plus arcade families; listed systems include GBA, Nintendo DS, NES, Super NES, Genesis, WonderSwan, Neo Geo Pocket, and Master System. The free plan costs nothing and includes handheld and console systems, imports, controller templates, Delta skin import, save states, and rewind. Games and BIOS files are not supplied, so users import content they are entitled to use through Files, AirDrop, a browser, a local Wi-Fi Portal, or the Homebrew catalog. Compatible external controllers and ready-made templates are supported. Retropa Plus adds arcade families, premium skins, console mode, advanced save workflows, adaptive touch controls with five styles, and 64 listed display filters. Saves can be backed up and restored with iCloud Drive. Game files stay on the device, and no account is needed to play. iPhone and iPad require iOS 18 or later.