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SMS Plus vs OpenEmu: catalog facts
SMS Plus	OpenEmu
Freemium The emulator is a free download; the Emulator Enhancer add-on is shareware.	Free The open-source application is available without a license fee.
macOS	macOS
Accurate Master System and Game Gear emulation YM2413 FM sound and CodeMasters mapper support	Native Mac library interface with artwork and metadata handled for you One controller configuration applies across every emulated system
macOS only Gamepad and full screen support need the paid Emulator Enhancer	macOS only Core updates depend on the OpenEmu team packaging them
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.