Updated · October 29, 2026
Privacy Policy
1. Operator and Scope
Nakayama Works ("we") handles information relating to Band Session Maker (the "App") in accordance with this policy. This policy applies to the App and inquiries about the App.
2. On-Device Audio and Settings Processing
The App stores and processes the audio and videos you select, track information such as titles and artist names, embedded lyrics metadata, separated parts, mix, playback and display settings, and exported audio and videos on your device. This is used to import, separate, play, practice with, and save audio, and to restore settings. Diagnostic records such as separation processing times are also stored on your device. We do not automatically send this information to our servers. To manage the free allowance, the App stores hashes of imported source files and records of successful separations locally in Keychain. These records are not sent to us to check your allowance.
3. Collection, Tracking and Permissions
The App has no account registration, advertising, third-party analytics or advertising SDKs, or tracking features. When you use the music library, the App requests iOS permission and uses the audio you choose with Apple’s standard picker, where available on your device, along with information such as its title and artist. File imports are limited to audio you select in the file picker. Video imports are limited to videos you select in the photo library picker; the App does not request access to your entire photo library. To save an exported video to Photos, the App requests permission to add items to your photo library. You can change these permissions in iPhone Settings. The App does not request microphone, camera or location access.
4. Destinations, External Services and Backups
If you choose to share or export, audio and videos are passed to the destination you select. Information handled by file providers such as iCloud Drive, the music and photo libraries, and Apple’s diagnostic and backup features is subject to the respective provider’s policies. The App does not provide its own cloud synchronization. Depending on your device settings, app data may be included in iCloud or computer backups. On-device processing does not mean that operating-system backups never occur. In-app purchases and purchase restoration use Apple’s App Store for payment and transaction verification; the App checks purchase status on your device. We do not receive payment card information. Apple handles purchase information under its own policies.
5. Deleting Data
Deleting a project from Projects removes its separated audio, editing data, settings and corresponding project audio. Separately retained imported source audio and previously exported audio are managed separately. Saved audio can be deleted from Sessions. To delete audio, videos and settings stored in the App together, use Delete App in iOS. Offload App keeps app data. Files shared outside the App and existing backups must be deleted at their respective destinations or services. Video projects also retain a copy of the source video so it can be exported again. Videos saved to Photos remain after a project is deleted and can be deleted separately in Photos. Free-allowance records stored in Keychain may remain on the device after the App is deleted. Deleting the App or a project does not guarantee that the free allowance will be reset. Purchase history is managed through your Apple Account and is not erased by deleting the App.
6. Information Received Through Support
If you contact us by email, we use your email address, message and any device or app information you voluntarily provide to respond and resolve issues. We do not use this information for advertising. We keep it secure for as long as needed to handle the inquiry and delete it when no longer needed. Except where required by law or similar circumstances, we do not provide it to third parties without your consent. Do not send audio you lack the rights to use or sensitive personal information.
7. Websites and Changes to This Policy
When you open a website such as our support page, the hosting provider may process information needed for communication, such as IP addresses. This is separate from automatically uploading audio processed locally within the App. Changes to this policy will be announced on this page or by similar means, and we will obtain any consent required by law.
8. Contact
Nakayama Works
Email: contact@nakayamaworks.jp
Contact us at this address to ask about this policy or to request access to or deletion of information provided through support.