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Hydrogen vs Sitala: catalog facts
Hydrogen	Sitala
Free The open-source application is available without a license fee.	Freemium Current version uses license activation; the older 1.0 release is still offered for…
Windows, macOS, Linux	Windows, macOS, iOS
Detailed sample controls and MIDI integration	Fast to learn with sixteen pads and six knobs Works as a plugin or standalone app
It focuses on drum sequencing rather than a complete recording studio.	Deliberately simple compared with full samplers Current version not offered for Linux
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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