LI DAN ("Developer", "we", "our", or "us") built the StringTension - Racket String Meter app ("App"). This Privacy Policy explains our practices regarding information when you use our App.

Here is a complete summary of what the App accesses:

• Microphone — Used solely to capture the sound when you tap the racket string bed. Audio is processed entirely on-device to estimate string tension. Raw audio is discarded immediately after analysis and is never transmitted anywhere.
• Local Storage — Measurement history, racket profiles, and stringing records are stored locally on your device only.

We do not collect or access:

• Camera or photos
• Location data (GPS or network-based)
• Contacts or address book
• Any personally identifiable information
• Usage analytics or crash reports sent to our servers

StringTension offers optional Pro membership (Monthly, Yearly, Lifetime). All transactions are processed by Apple through the App Store. We do not receive or store your payment information. Manage subscriptions in your Apple ID settings.

We do not sell, trade, or transfer your information to third parties. Since all data is stored locally on your device, there is no data on our servers to share.

Delete all App data at any time by:

• Using "Clear Data" in App settings
• Uninstalling the App from your device

Uninstalling permanently removes all locally stored data.

The App is rated 4+ and suitable for all ages. We do not collect personal information from any users, including children.

All data is stored locally and never transmitted. Your data security depends on your device's own security features. We recommend keeping iOS updated.

We may update this Privacy Policy. Significant changes will be communicated by updating the Effective Date above or via in-app notification. Continued use constitutes acceptance.

Questions about this Privacy Policy? Contact us at: sales@hkhdtp.com