OverhangProof keeps countertop job data on your device.

Last updated: June 2, 2026

Overview

OverhangProof is an Android tool for countertop overhang and support-bracket planning. The app has no Anvilfield account system, no ads, no analytics SDK, and no Anvilfield cloud sync.

Data stored locally

Project names and addresses or job labels you enter.
Counter labels, material, thickness, overhang depth, slab depth, run length, support depth, seating, cutout, and spacing values.
Saved presets and settings.
Fabricator name, license or shop ID, and signed-by text.
Certificate export history and support-plan snapshots.
Local Pro entitlement state after a verified Google Play Billing purchase.

This data is stored in local SQLite and app settings storage on your device. Anvilfield does not receive this local app data.

Google Play Billing

OverhangProof Pro is an optional one-time purchase handled by Google Play Billing. Google Play processes the purchase. OverhangProof receives purchase status needed to unlock Pro and caches the entitlement so unlocked features can keep working offline. Anvilfield does not receive your full payment card number through the app.

Exports and sharing

OverhangProof can generate a support certificate PDF and a support diagram PNG from your inputs. Exports and shares happen only when you start them. If you send a file through email, print, cloud storage, messaging, or another app, that destination handles the file under its own terms and privacy policy.

Data OverhangProof does not collect

No account registration.
No analytics SDK.
No advertising SDK or ad identifier use.
No location, camera, microphone, photos, contacts, or app-controlled cloud sync.

Deleting data

You can delete saved projects in the app. You can also clear all OverhangProof data from Android system settings. Files you exported or shared must be deleted from the place where you saved or sent them.

Children

OverhangProof is made for adult countertop fabrication and installation professionals. It is not directed to children or teens, and the Play Console target age group is Ages 18 and over only.

Contact

For privacy or support questions, email support@anvilfield.com.

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