Roof Calc: Shingle Estimator · Last updated: June 30, 2026
Roof Calc ("the App") is a roofing material calculator developed by Wenhao Zhang. We respect your privacy. This policy explains what the App does and does not collect.
None. The App does not require an account, login, email, or any personal information. The roof dimensions, prices, and project data you enter are stored only on your device (locally) and are never sent to us or any third party. You can delete this data at any time by deleting a saved project or the App.
If you installed the App after tapping an Apple Search Ads advertisement, Apple's AdServices framework may provide the App with a temporary attribution token indicating that the install originated from an ad campaign. This is used solely to understand which advertising campaigns lead to installs. It does not identify you personally. This process is provided and governed by Apple. See Apple's privacy policy at https://www.apple.com/legal/privacy/.
The App offers a one-time in-app purchase to unlock full features. Payments are processed entirely by Apple through the App Store. We do not receive or store your payment information. Purchase validation is handled by Apple's StoreKit.
The App contains no third-party analytics, advertising, tracking, or social media SDKs.
The App is rated 4+ and does not collect data from anyone, including children.
We may update this policy from time to time. Changes will be posted on this page with an updated date.
If you have questions about this policy, contact us at: 0009888@gmail.com