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Altered Studio vs RVC WebUI: catalog facts
Altered Studio	RVC WebUI
Freemium Commercial product; check the Altered site for current plans and prices.	Free Free and open source under the MIT licence.
Windows, macOS, Web	Windows, Linux
Speech-to-speech conversion keeps the timing and inflection of your performance Curated library of voices plus custom voices	Trains usable voice models from short recordings Real-time voice changer with low latency
Proprietary software Pricing and plan limits are not clear from the homepage	Manual Python environment setup Much of the documentation is written in Chinese first
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: MIT
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 September 26, 2026	Official website Full listing and sources Checked September 26, 2026

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