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SkyEmu vs Gearboy: catalog facts
SkyEmu	Gearboy
Free Free to download, with source code published on GitHub.	Free Free and open source.
macOS, Linux	Windows, macOS, Linux
Covers Game Boy, Game Boy Color, GBA and DS in one program Low-level emulation aimed at preservation	Built-in debugger Super Game Boy support
Platform support is not clearly documented in the research You must supply your own game files	Limited to Game Boy family systems
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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