Welcome to the Concrete Mix & Cost Calculator support center. Find answers to common questions and learn how to get the most out of the app.
1. Select your shape type (slab, column, wall, stairs, or circle)
2. Enter the dimensions in your preferred unit (metric or imperial)
3. Set the waste percentage (typically 5-10%)
4. Tap "Calculate" to see results including volume, bags needed, and cost
After calculating, tap the "Save Project" button in the results screen. Enter a project name (optional) and tap "Save". Your project will be saved to the Projects tab for future reference.
Go to the Projects tab, tap on the project you want to edit, then tap the "Edit" button. This will load the project data into the calculator where you can modify dimensions and recalculate.
In the Projects tab, swipe left on the project you want to delete, then tap the "Delete" button. You can also tap "Edit" in the toolbar to select multiple projects for deletion.
Tap the AR icon next to any dimension field. Point your camera at the surface, tap to place two points, and the distance will be automatically measured and filled in. Make sure you have good lighting and a clear view of the surface.
Open a saved project, tap the share button, and select "Export PDF". You can then save or share the PDF with project details, calculations, and cost breakdown.
Yes! All features work completely offline. No internet connection is required for calculations, project management, or any other functionality.
The app uses standard concrete calculation formulas and provides accurate estimates. However, always verify calculations independently and consult with professionals for critical projects. Actual requirements may vary based on site conditions, material properties, and local codes.
All project data is stored locally on your device for privacy and security. Projects are not synced between devices. If you need to transfer projects, you can export them as PDF and recreate them on another device.
Concrete Mix & Cost Calculator requires iOS 15.0 or later. The app is optimized for iPhone and iPad.
The app automatically uses your device's language setting. To change language, go to your iPhone Settings → General → Language & Region, and select your preferred language. The app supports English and Chinese.
Try these steps:
1. Force close the app and reopen it
2. Restart your device
3. Make sure you have the latest version from the App Store
4. If the problem persists, try deleting and reinstalling the app (note: this will delete all saved projects)
Double-check that:
• All dimensions are entered correctly
• The correct unit system is selected (metric/imperial)
• The shape type matches your project
• Waste percentage is appropriate for your project
If you believe there's a calculation error, please report it through the App Store.
Make sure:
• Your device supports ARKit (iPhone 6s or later)
• Camera permissions are enabled in Settings
• You have good lighting conditions
• You're pointing at a clear, visible surface
• Measure dimensions carefully and double-check
• Use AR measurement for hard-to-reach areas
• Add 5-10% waste factor for typical projects
• Consider site conditions and access
• Consult with professionals for structural projects
• Use descriptive project names (e.g., "Garage Slab - Front", "Patio - Backyard")
• Save projects before making major changes
• Export important projects as PDF for backup
• Review and update cost estimates regularly
This calculator provides estimates for planning purposes only. Actual material requirements may vary based on site conditions, material specifications, and construction methods. Always verify measurements on-site and consult with qualified professionals for structural projects. Order 5-10% extra material to account for waste and variations.
We're constantly working to improve Concrete Mix & Cost Calculator. While we don't provide direct contact information, you can submit feedback and feature requests through the App Store review system. We read all reviews and consider suggestions for future updates.
We regularly release updates with new features, improvements, and bug fixes. Make sure to keep your app updated to the latest version through the App Store.