Privacy Policy

Effective Date: March 6, 2026

T-test Plus ("the App") is developed to provide local statistical analysis tools. We deeply respect your privacy and are committed to protecting it.

1. No Data Collection

The App operates entirely offline. All data sets you import, input, or analyze (including CSV files and manual entries) are processed locally on your device (macOS, iPadOS, or iOS). We do not collect, store, transmit, or have any access to your data, personal information, or statistical results.

2. In-App Purchases

We offer In-App Purchases (Pro features) to unlock advanced tools. All payments and transactions are securely processed and managed by Apple. We do not have access to your Apple ID, payment methods, or billing details.

3. Analytics and Tracking

The App does not include any third-party advertising trackers or analytic SDKs.

4. Changes to This Policy

We may update our Privacy Policy periodically. Any changes will be posted on this page with an updated effective date.

5. Contact Us

If you have any questions about this Privacy Policy, please contact us at: wallacememe@gmail.com