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AudioPen vs Diktafon: catalog facts
AudioPen	Diktafon
Freemium Free to start with no card needed; paid plans add more.	Free Free and open source under the MIT licence.
Windows, macOS, Android, iOS, Web, Browser extension	Android
Rewrites spoken thoughts into structured text Choice of writing styles	On-device transcription and summaries Memos organized by topic as cassettes
Audio is processed in the cloud Rewriting may change wording you wanted kept verbatim	Young project with a small history On-device AI may be slow on older phones
Downloadable app, Web application, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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