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OpenEmu vs RetroDECK: catalog facts
OpenEmu	RetroDECK
Free The open-source application is available without a license fee.	Free Free to install from Flathub.
macOS	Linux
Native Mac library interface with artwork and metadata handled for you One controller configuration applies across every emulated system	Emulators and frontend preconfigured in one package Sandboxed Flatpak keeps files together
macOS only Core updates depend on the OpenEmu team packaging them	Linux only Flatpak packaging required
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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