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NaturalReader vs Speech Note: catalog facts
NaturalReader	Speech Note
Freemium Free to start, with paid personal, commercial and education plans.	Free Free and open source under the Mozilla Public License 2.0.
Android, iOS, Web, Browser extension	Linux
Reads PDFs, images and web pages aloud Available on web, mobile and as a Chrome extension	Speech recognition, speech synthesis and translation all run offline Wide choice of engines, including Whisper, Piper and Kokoro
Commercial use needs a separate plan Best voices and features sit behind paid plans	Linux and Sailfish OS only Models must be downloaded separately and can be large
Downloadable app, Web application, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: MPL-2.0
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.