Privacy Policy

PT Calculator collects no personal data. This policy explains exactly what that means.

Effective: January 1, 2026

The short version: PT Calculator does not collect, transmit, store, or share any personal information. Everything stays on your device.

1. Who We Are

PT Calculator is developed and published by DahVio Studios, a solo developer studio based in Long Beach, California, operated by Ray (ray@dahvio.com).

2. Data We Do Not Collect

PT Calculator does not collect any of the following:

  • Personal identifiers (name, email, phone, address)
  • Health or fitness data
  • Device identifiers or advertising IDs
  • Location data
  • Usage analytics or behavioral data
  • Crash reports or diagnostics
  • Any information whatsoever

3. Local Storage

The app saves your last entered values (age, gender, event selections, and performance inputs) to your device's local storage via iOS's standard UserDefaults system. This data:

  • Never leaves your device
  • Is not accessible to DahVio Studios or any third party
  • Can be cleared at any time by deleting the app

4. No Internet Connection Required

PT Calculator operates entirely offline. The app makes no network requests of any kind. All scoring logic is computed locally on your device using hardcoded tables derived from DAFMAN 36-2905.

5. No Third-Party SDKs or Analytics

PT Calculator does not include any third-party analytics, advertising, tracking, or crash reporting frameworks. There are no SDKs from Google, Facebook, Firebase, or any other provider embedded in the app.

6. Children's Privacy

PT Calculator is intended for active duty military personnel and fitness assessment candidates. The app is rated 9+ on the App Store. We do not knowingly collect any data from anyone, including children under 13.

7. App Store Data Practices

While DahVio Studios collects no data, Apple may collect certain app usage data as part of normal App Store operations. Please refer to Apple's Privacy Policy for details on their data practices.

8. Changes to This Policy

If our data practices ever change, this policy will be updated with a new effective date and noted in the app's release notes. Given the offline, no-tracking nature of this app, material changes are unlikely.

9. Contact

Questions about this privacy policy or the app?


ray@dahvio.com