Support

Calcrete

Need a hand? Email shq.shenhuaqing@gmail.com — we usually reply within 1–2 business days. Please include your device model and iOS version.

Contact us

Bug reports, feature requests, anything — just email us, or use in-app feedback if available.

Getting started: use the Calc tab for feet-inch math; open Estimate for the concrete, area-material and framing calculators; tap Save to History to keep a result, or Export PDF Quote (Pro) for a client-ready estimate.
Restore a purchase: use the Restore option with the same Apple Account you bought with.
Manage/cancel a subscription: iOS Settings → your name → Subscriptions. One-time purchases have nothing to cancel.
Refunds: handled by Apple — reportaproblem.apple.com.
Your data: stored on your device; we never see it. See Privacy Policy.