Privacy Policy
Last updated: 29 October 2026
In short
- Your projects, offcuts, photos and settings are stored only on your device. We never receive them.
- There is no account, no advertising, no analytics and no tracking in the app.
- The app goes online only to check and handle purchases, through Apple and RevenueCat.
- Exports leave your device only when you choose where to send them.
- This website uses no cookies, no analytics and no tracking scripts.
This policy explains how the CutStack app and this website handle your information. "We" and "us" mean the people who make CutStack.
What stays on your device
Everything you create in CutStack is saved on your iPhone or iPad, inside the app:
- projects: parts, sizes, stock sheets, materials, costs and notes
- cutting plans and your progress in Cutting Mode
- your offcut inventory
- project photos (the app keeps its own copy of each photo you add)
- your settings and the choices you make when you first open the app
None of this is sent to us or to anyone else. Cutting plans are calculated on your device, and the app works without an internet connection.
If you back up your device to iCloud or to a computer, iOS includes the app's data in that backup. Those backups are handled by Apple and by you, not by us.
Permissions
Camera
CutStack asks for camera access only when you choose to take a photo for a project. The photo is saved inside the app. You can turn camera access off at any time in the Settings app, under CutStack.
Photos
When you add a photo from your library, you pick it in Apple's photo picker. CutStack receives only the photos you pick, and saves a copy inside the app.
Nothing else
CutStack does not ask for your location, contacts, microphone, notifications or permission to track you. Some features use the system without a permission:
- Importing a CSV parts list or restoring a JSON backup opens Apple's file picker. The app reads only the file you choose.
- Cutting Mode keeps the screen awake while it is open.
Sharing and exports
CutStack can export cut plans and part labels (PDF), parts lists (CSV), Excel workbooks, layouts (SVG and DXF), G-code and JSON backups. These files are created on your device. They leave it only when you choose a destination in Apple's share sheet, for example Mail, Messages, AirDrop, Files or a printer. What happens to a file after that is up to the app or service you send it to.
Purchases
CutStack Pro is sold through Apple's App Store. Apple handles the payment. We never see your card details, your name, your email address or your Apple Account.
Third parties
We do not sell your information, and the app contains no advertising, analytics or tracking tools. These services receive some data:
Apple
Apple processes App Store purchases, subscriptions, refunds and ratings. If you have chosen in your device settings to share analytics with app developers, Apple may share crash reports and usage statistics with us, which do not identify you. See Apple's Privacy Policy.
RevenueCat (purchases)
The app uses RevenueCat to load the CutStack Pro prices, handle purchases and restores, and check whether CutStack Pro is active. When the app opens while you're online, and when you buy or restore, RevenueCat receives:
- a random ID created for this app on your device, which is not linked to your name or email address
- your CutStack purchase and subscription details from the App Store: which product, dates, price, currency and transaction IDs
- technical details sent with any internet request, such as your IP address, device model, iOS version, app version, country and language
RevenueCat never receives your projects, photos or any other content you create. See RevenueCat's Privacy Policy.
Web3Forms (contact form)
When you send a message through our contact form, Web3Forms receives your name, email address and message, together with technical details such as your IP address, and delivers them to us by email. We use them only to reply to you. See Web3Forms' Privacy Policy.
Cloudflare (website hosting)
This website is hosted on Cloudflare Pages. When you visit it, including when the app opens one of its pages, Cloudflare processes your IP address and browser details to deliver the page and protect the site. We don't add cookies, analytics or tracking scripts. See Cloudflare's Privacy Policy.
Ratings
"Rate CutStack" in the app's Settings uses Apple's own rating prompt. Your rating and any review go to Apple and are published on the App Store under Apple's terms. We see only what Apple publishes.
Children
CutStack is a woodworking tool and is not directed at children. We do not knowingly collect personal information from children. If you believe a child has sent us information through the contact form, contact us and we will delete it.
How to delete your data
- In the app: delete projects, offcuts and photos at any time. Deleted photos are removed from the app's storage.
- Everything at once: delete the app from your device. This removes all of its data from the device. JSON backups you exported and device backups are kept until you delete them yourself.
- Purchase records at RevenueCat, or messages you sent us: contact us and we will delete them. Apple keeps its own record of your purchases; deleting the app does not cancel a subscription (see the Terms of Use).
Changes to this policy
If the app or this website starts handling data differently, we will update this page and the date at the top before the change takes effect.
Contact
Questions about privacy? Use our contact form.