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Altered Studio vs Realtime Voice Changer: catalog facts
Altered Studio	Realtime Voice Changer
Freemium Commercial product; check the Altered site for current plans and prices.	Free Free to use from the public repository.
Windows, macOS, Web	Self-hosted
Speech-to-speech conversion keeps the timing and inflection of your performance Curated library of voices plus custom voices	Real-time conversion with RVC models Runs locally, with Colab and Kaggle options
Proprietary software Pricing and plan limits are not clear from the homepage	Needs a capable GPU for low latency Setup and model handling are technical
Downloadable app, Web application	Self-hosted
Closed source	Open source
License not stated	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 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.