Privacy Policy
Concrete Mix Ratio Calculator stores recent calculations and a small set of local defaults on your device.
What the app collects
Concrete Mix Ratio Calculator does not collect personal data from you.
Accounts
The app does not require account creation or sign-in.
Analytics
The app does not use third-party analytics or ad tracking SDKs.
Data sharing
The app does not sell or share your data with third parties.
Data stored on device
The app may store the following on device so it can work offline:
- the last selected preset or custom ratio
- recent batch sizes and units
- recent result summaries
Deleting the app removes locally stored app data unless you use your own backup workflow.
Product scope
Concrete Mix Ratio Calculator is a field reference only. It does not provide engineering review, permit advice, structural approval, code-compliance guarantees, or supplier pricing commitments.
Contact
For privacy or support questions about Concrete Mix Ratio Calculator, email yangguangwin@icloud.com.