Privacy Policy

Last updated: July 22, 2026

The short version: StairSketch does not collect, sell, or share any of your data. Everything you enter stays on your device and in your personal iCloud. There are no accounts, no analytics, no ads, and no tracking.

What data StairSketch stores

StairSketch stores the content you create in the app: stair calculations and saved stair projects. This data lives:

On your device, in the app's private storage.
In your personal iCloud (CloudKit), if you are signed into iCloud, so your data syncs across your devices. This storage is governed by Apple's privacy terms, and we have no access to it.

What we collect

Nothing. StairSketch has no analytics, no advertising SDKs, no crash reporting services, and no server of our own. We cannot see your data, your calculations, or anything about how you use the app.

Purchases

StairSketch Pro purchases (lifetime or annual) are processed entirely by Apple through the App Store. We never see your payment details. Purchase receipts are validated on your device by Apple's StoreKit framework.

Exports

PDF plan exports are generated on your device. Where you send them (email, files, print) is entirely up to you and handled by iOS's standard share sheet.

Children's privacy

StairSketch does not collect data from anyone, including children.

Changes to this policy

If this policy ever changes, the updated version will be posted at this address with a new "last updated" date.

Contact

Questions? Email fxromualdnui@gmail.com.