ToneCut

Extract just your playing, then transcribe and summarize. Capture lessons and rehearsals into AI minutes, even translated. On-device transcription is free and private.

[A kitchen knife for video, and a scribe for your practice]

The iOS app that extracts just your instrument performance now also records your sessions.

■ Cut the performance (free) Solo or ensemble recordings pick up conversation. ToneCut trims away the unnecessary parts and exports the performance in original quality (no re-encoding).

• Record: faithful instrument dynamics
• Cut: adjust the volume threshold on the waveform
• Export: save to Photos in original quality

■ Transcription (free, on-device) Turn your video or audio into text on the spot. No network, no API key - everything stays on your device (private by design). Choose the spoken language to handle many languages, lessons and conversations.

• Requires iPhone 12 or later and iOS 26 or later

■ AI minutes (Pro) Turn the transcript into clean minutes. The tone adapts to the content - lesson, rehearsal, recital, event, or meeting. Small talk is kept where possible, so you capture the feel of the moment.

• Choose the minutes language: keep the transcript in the original language and write the minutes in another (summary with translation)
• Save/share minutes as Markdown or PDF

■ Audio files too Import recording-only practice files. Cutting and transcription work through the same flow as video.

■ Custom file names Name the exported video, audio, minutes (PDF) and transcript however you like.

■ Settings

• Video quality: Light (720p) / Standard (1080p) / High (4K)
• Instrument range: High / Standard / Low
• Audio mode: Preserve dynamics / Prevent clipping
• Spoken language / Minutes language / Display language

■ Privacy Transcription runs on-device and is not transmitted. Only when you use AI minutes, the transcript text is sent (via our server) to an AI (Claude) to generate the summary. The audio/video itself is never sent. The text is not stored on the server afterward.

[Pricing]

• Cutting and transcription are free.
• AI minutes include a one-time 60-minute free trial. To keep using it, subscribe to Pro.

[About the subscription] ToneCut Pro is a monthly auto-renewing subscription.

• Light: 500 JPY/month, 5 hours of AI minutes
• Standard: 980 JPY/month, 15 hours of AI minutes
• Pro: 1,980 JPY/month, 40 hours of AI minutes Payment is charged to your Apple ID at confirmation. It renews automatically unless auto-renew is turned off at least 24 hours before the period ends. Manage or cancel anytime in Settings > Apple Account > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dai-hydrangea.github.io/privacy-policy-tonecut.html