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mGBA vs Gearboy: catalog facts
mGBA	Gearboy
Free Free and open source under the MPL 2.0.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
Accurate enough for the awkward cartridges: motion, solar and clock hardware Full speed on low-end machines, including netbooks	Built-in debugger Super Game Boy support
Game Boy Advance and earlier only; no DS or later Link cable play only works between instances on the same computer	Limited to Game Boy family systems
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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