Sevenstead AppsDeveloper and contact
This policy covers LineTone and its website pages, published under the Sevenstead Apps brand.
Privacy and support: tw92936969@gmail.com.
Local information
Canvas titles, strokes, selected voices, musical key, tempo, saved times and exported WAV and MP4 files are stored in the app’s private storage on your device.
No developer-operated data collection
The app has no account system, backend, advertising, tracking or third-party analytics SDK. It makes no requests to a developer-operated server and does not use a remote AI service. We do not receive your projects or media through the app. Apple system services and sharing destinations may use the network when you choose them.
Photos, audio and permissions
The app creates sound from its own synthesis code. It does not record microphone input, use the camera, import photos or request access to your photo library or location. It uses Apple’s system audio playback and video-export frameworks.
Exports and sharing
WAV exports contain the locally synthesized audio loop. MP4 exports contain the canvas drawing, a moving play line and that audio. They are not password protected by the app. The app does not add your account identity or location to these files. Your own drawing content can still include information you intend to keep private. Sharing happens only when you choose a destination in the system share sheet. That destination handles the copy under its own policies. Review a file and its recipient before sharing. We cannot recall or remove copies you have saved or sent elsewhere.
Retention and deletion
Deleting a canvas removes its editable record from the local archive, but does not automatically remove historical WAV or MP4 exports from the app’s storage. The first version has no storage-cleanup or complete canvas-backup import feature. Deleting the app removes its local app-container data. Offloading an app may retain that data. Files you saved outside the app, copies shared with others and existing device backups are separate and are not deleted by removing a project or the app.
Device backups
App data in the Documents directory may be included in your iCloud device backup or a computer backup, according to your settings. These are managed by you and Apple; the app does not provide its own cloud synchronization. Finished media and documents are not complete, restorable project backups.
Purchases and platform diagnostics
Apple handles App Store purchases and may process platform diagnostics under its own policies and your device settings. The app does not receive your payment-card details. There are no subscriptions or in-app purchases in this version.
Support email
If you email support, we receive your address and the information you choose to send. We use it to respond, not to track you or advertise to you. Gmail handles the correspondence under Google’s privacy practices. Avoid attaching private records unless needed. We retain correspondence as needed to resolve the request and meet applicable obligations; contact support to request deletion.
This website
This website has no accounts, advertising, analytics scripts or upload forms. Cloudflare may process IP addresses and technical request information to deliver and protect it. Email links open your chosen email app; they do not send your local app records automatically.
Changes to this policy
We update the date on this page when practices change and update app information and App Store privacy details as appropriate.
Service providers
See Apple’s privacy policy, Cloudflare’s privacy policy and Google’s privacy policy for platform, hosting and email practices.