Koetoji

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Koetoji Support

Last updated: October 28, 2026

Email studio.gennai1@gmail.com with “Koetoji” in the subject. Include your device model, OS and app versions, the steps you took and the displayed error. Recordings or transcripts are not required. Do not send passwords, authentication codes, card numbers or unnecessary sensitive information.

Transcription does not start or stops

Check the selected recognition language, microphone and speech permissions, and availability of the OS on-device language model. Model preparation may need a connection. Support depends on your device, OS, recognition service and language. If recognition stops, check its displayed state and use available resume controls. Recording and transcription are handled separately. Try the free slots before buying; Pro cannot fix an unsupported device or language.

On Android 12/12L, transcription is not available (recording is available). Transcription requires Android 13 or later, an on-device speech recognition service that supports recorded audio input, and a prepared language model. Availability varies by device.

On iPhone and iPad, transcription pauses when the screen is off or while using other apps, and resumes when you return to the app. Audio from that period is not transcribed automatically. Please check the status of recording and transcription separately.

Recording with the screen off

Unlock the device and start recording in the app, then use the normal power or side button to turn off the screen. The app does not start a new recording from the locked screen. Tell us the device, OS, state after returning and any stop error. Calls, other apps and device conditions may interrupt recording. Test continuation and saving on your own device before an important use.

Pro does not restore

  1. Confirm you opened Koetoji, which is separate from the original Mute Pad.
  2. Sign into the same store purchase account used to buy Pro and connect to the store.
  3. Use Restore Purchases in Settings.
  4. If access is not restored, check the purchase history and error and contact us before buying again. We may ask for an order number when necessary.

Restoring a purchase does not restore recordings or text. There is no cross-store entitlement transfer. Refunded, revoked or otherwise invalid purchases are not eligible.

Refund requests

For Apple purchases, follow Apple's refund guide using the purchase account.

For Google Play, see the Google Play refund policy. The procedure depends on elapsed time, region and other conditions and may direct you to the developer; contact us at the address above if so.

Eligibility follows store conditions and applicable law. Never email account passwords or authentication codes.

Device changes and recovery

The app provides no recording-library cloud synchronization or migration. The operator cannot recover records made inaccessible by deletion, uninstalling or loss of a device or keys. Explicitly export important audio or text using Share. Copies passed to another service are handled under that service's conditions.

Information handling and replies

Support records are deleted when no longer needed for the request, dispute resolution or legal obligations. We review your request and explain the next steps if investigation or identity verification is needed. We do not provide phone or chat support or guarantee a response within a fixed time. Check your spam settings if a reply is missing.

Privacy Policy / Terms

Operator & Location

STUDIO-GENNAI

4F Hikari Building, 1-2-1 Hiroo, Shibuya-ku, Tokyo 150-0012, Japan

studio.gennai1@gmail.com

Operator location updated: 2026-10-07