Legal

Privacy Policy

Effective September 26, 2026. StoneLab is published by XZ Industries LLC ("we", "us").

In short: StoneLab itself does not collect your personal data, require an account, show ads or track you. Your designs, photos and project files are not uploaded to us.

What StoneLab does not do

What StoneLab stores on your device

To do its job, StoneLab may keep the following in the app's storage on your iPhone or iPad:

This information remains under your control on your device. It may also be included in device backups you have enabled through Apple or your computer. XZ Industries does not have access to those backups.

Camera, photos and files

Camera. StoneLab asks for camera access only when you choose to take a photo inside the app. The photo is used for your design.

Photos. When you choose a picture from your library, StoneLab uses Apple's system photo picker so you choose what the app receives.

Files. StoneLab reads files only when you choose to open or import them.

Sharing and exports

When you export a design, StoneLab creates a file and passes it to Apple's share interface or Files workflow. You choose where that file goes. Once you share a file with another app, service or person, their privacy practices apply. An exported file may contain information you intentionally included, such as a business name on a quote.

Diagnostics from Apple

If you choose in your Apple device settings to share diagnostics with app developers, Apple may provide XZ Industries with crash or diagnostic information through its developer tools. We use that information only to diagnose and improve StoneLab. Apple controls what diagnostic information is provided.

Deleting your data

You can delete projects from within StoneLab. Deleting StoneLab from your device removes data kept in the app's local storage, subject to any backups or exported files you control. Because XZ Industries does not keep a server copy of your projects, there is no project data for us to delete on our side.

Children

StoneLab is not directed to children under 13, and StoneLab does not knowingly collect personal information from children.

Changes

If StoneLab's data practices change, we will update this policy and its effective date before the relevant change ships, and we will update the App Store privacy disclosures as required.

Contact

Questions about this policy can be sent to [email protected].

XZ Industries LLC
Arizona, United States