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Furnace vs SunVox: catalog facts
Furnace	SunVox
Free Free and open source under the GPL.	Freemium The mobile apps are paid; the desktop versions are downloaded from the developer's site.
Windows, macOS, Linux	Windows, macOS, Linux, Android, iOS
Supports many classic sound chips in one tracker Compatible with DefleMask modules	Modular synthesis and tracker sequencing in one small program Runs on many platforms, including old hardware
Tracker interface has a learning curve for newcomers	Buying the Android version through Google Play is currently blocked Tracker and modular workflow has a learning curve
Downloadable app	Downloadable app
Open source	Closed source
License: GPL	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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