Privacy policy

Local instrument and storage

The local synth, drawing board, sampler and sequencer work on your device. Your sketch, generated pads, pitch, tempo, beat and sound-source preference are saved in the app’s local storage. The app does not upload drawing pixels or touch coordinates.

Tink-on has no account system, ads or analytics SDK. It does not request microphone, contacts or location access, and it does not use an advertising identifier or track you across other companies’ apps and websites.

Optional AI generation

Before the first AI request, you can choose Use AI or Use Offline Synth. Choosing SYNTH in Settings stops future AI requests and clears the saved permission; enabling AI again asks permission before sending another request. When enabled, pressing GENERATE sends a text description derived from your drawing’s musical characteristics and a requested duration to Tink-on’s Vercel-hosted server and then to ElevenLabs. The request contains no drawing pixels, touch coordinates, name, email or Tink-on user/device identifier. ElevenLabs receives the server’s connection information, not a forwarded device IP address. Generated audio returns to your device and is saved with your kit.

Vercel receives connection information such as your IP address and operational request metadata to serve AI requests and may retain security or diagnostic logs. These diagnostics may be associated with your network address, so we disclose diagnostic data as linked in the App Store privacy information. The derived prompts sent to ElevenLabs have no end-user identifiers. ElevenLabs may retain prompts and generated audio for service operation, safety and model improvement under its privacy policy and account settings. Tink-on does not promise zero retention or that provider training is disabled. We do not use this data for ads, cross-app tracking or a Tink-on account profile.

With SYNTH selected, drawing, synthesis, sequencing and WAV export work offline without sending an AI request. When AI is unavailable, including network failure or exhausted credits, generation falls back to the local synth.

If you choose to open a support or privacy link, it opens a webpage in your browser. The website host, Vercel, receives connection information such as an IP address and request metadata to serve the page and may retain operational or security logs under its privacy policy. This is separate from the offline instrument.

Earlier TestFlight builds

TestFlight builds 1.0 (1) through 1.0 (6) offered optional AI generation. If you enabled it and pressed GENERATE in those builds, a text description derived from your drawing’s musical characteristics and a requested duration were sent through Tink-on’s Vercel-hosted server to ElevenLabs. Drawing pixels, touch coordinates, your name and email were not included in that request. Network services received connection information, and ElevenLabs may retain prompts and generated audio under its privacy policy. Build 7 removed AI requests; build 8 restores them only when AI is enabled. Changing versions or turning AI off does not delete requests already processed by a provider.

Sharing and support

When you use Share, you choose the app or service that receives your exported WAV file. That destination’s privacy practices apply to the file you share.

If you email support, your email address, message and any attachments are received to respond to your request and investigate the issue. Avoid including unnecessary personal information.

Your choices and deletion

Choose SYNTH in Settings to stop future AI requests. Your local drawing and kit remain on the device. You decide whether to export a sound through the system share sheet or contact support.

CLR removes the current sketch; DEL removes the selected pad and its recorded hits. To remove the app’s local kit and settings, delete the app using Delete App rather than Offload App. Exported files and system backups are managed separately through Files, the destination service and your Apple device or backup settings.

For questions about data held through support or AI providers, including access or deletion requests, email hi@zui.ooo. There is no Tink-on user account or user identifier attached to AI requests, so identifying a particular provider request may require its approximate time. Provider retention and legal obligations may affect what can be removed.

Changes

Updates to this policy will appear on this page with a revised date. Material changes to the app’s data handling will also be reflected in its App Store privacy information.