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Klangio vs NeuralNote: catalog facts
Klangio	NeuralNote
Freemium The first 20 seconds of a transcription are free; full use is paid, with a 14-day…	Free Free and open source under the Apache 2.0 licence.
Web	Windows, macOS
Accepts recordings, audio files and YouTube links Exports sheet music, MIDI, MusicXML and Guitar Pro	Transcription runs locally, so audio never leaves the machine Multi-instrument transcription of full mixes in v2
Free use is limited to the first 20 seconds Several separate apps can make the range confusing	v2 has no installers yet and must be built from source No Linux support yet
Web application	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
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 26, 2026	Official website Full listing and sources Checked October 2, 2026

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