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USP - ZX Spectrum Emulator vs Fuse for macOS: catalog facts
USP - ZX Spectrum Emulator	Fuse for macOS
Free Free and open source under the GPL-3.0-or-later licence.	Free Free download from SourceForge.
Android	macOS
Wide file format support including tzx, trd and rzx Emulates Pentagon 128K with AY/YM sound and Beta Disk	Native macOS port of a long-standing ZX Spectrum emulator Apple Silicon build available
Emulates the ZX Spectrum family only Sparse project homepage and documentation	macOS only Project homepage is minimal, with little documentation
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	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 October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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