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redream vs Flycast: catalog facts
redream	Flycast
Freemium A free version runs at native resolution. A premium licence unlocks high resolutions and…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Linux, Android	Windows, macOS, Linux, Android
Runs with no BIOS file and essentially no configuration Widescreen and high-resolution rendering with automatic cover art	Supports several platforms and configurable emulation features.
Resolutions above native and some features require a paid premium licence Closed source	Game and firmware files must be supplied separately where required.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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