App Support

Concrete Mix Ratio Calculator

Concrete Mix Ratio Calculator is a local-first field reference for quickly splitting a target batch into cement, sand, and aggregate parts.

Support email: yangguangwin@icloud.com

Common questions

Does the app need an account?
No. Everything stays on your device.

Does the app work offline?
Yes. Core calculations and saved recent results do not require a network connection.

Does the app provide engineering approval or strength certification?
No. The app is a planning reference only. Always confirm local requirements, supplier guidance, and any structural or inspection needs before you mix or pour.

What units does the app support?
Version 1.0 supports liters, cubic meters, and cubic feet for the target batch size.

Is the cement bag count exact?
No. Bag output is shown as an assumption-based estimate so you can sense-check a batch quickly on site.

Contact

Email yangguangwin@icloud.com with your device model, iOS version, app version, and a short note describing the step that failed.

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