Privacy Policy
Effective October 21, 2026
12 Sierras doesn't collect your data. There's no account, no server, no analytics and no ads. What you enter stays on your device.
This policy covers the 12 Sierras app for iPhone and the web version at app.12sierras.com. Both are published by Paul Rodden, doing business as 12 Sierras Woodworking, The Woodlands, Texas.
What the app stores, and where
Your projects, your board rack, your shop profile (machines, tools and units) and, if you use AI drafting, your AI provider key are saved on your device only. In the iPhone app they live in the app's own storage. On the web they live in your browser's storage. None of it is sent to 12 Sierras, because there is nowhere for it to go.
Backups
The Backup screen can export everything as a file or copy it to your clipboard. That file goes wherever you choose to send it, such as Files, iCloud Drive, AirDrop or email. 12 Sierras never receives it.
Optional AI drafting
AI drafting is off unless you turn it on by connecting your own account with Anthropic, OpenAI or Google. Before you connect, the app shows what will be sent and asks you to agree.
When you tap Generate cut list on an AI-drafted project, the app sends the project's name, description, overall dimensions, material and joint allowances straight from your device to the provider you chose, along with your key. It doesn't go through 12 Sierras, and 12 Sierras never sees it. Nothing is sent until you tap that button, and nothing is sent if you use the built-in templates.
That provider handles the request under its own privacy policy, and any usage is billed to your account with them:
Disconnecting in the app deletes the key from your device.
What 12 Sierras does not do
- No accounts or sign-in
- No analytics, tracking or advertising
- No third-party code that collects data
- No selling or sharing of personal information. There isn't any to sell or share.
Apple
Apple handles App Store purchases under its own privacy policy. If you've chosen to share analytics with app developers in your iPhone settings, Apple may give 12 Sierras anonymous crash reports and summary App Store statistics. These don't identify you and don't include anything you've entered in the app.
Children
12 Sierras isn't directed at children under 13. It doesn't collect personal information from anyone, including children.
Deleting your data
Delete projects or boards in the app at any time. Deleting the app from your iPhone, or clearing site data in your browser, removes everything it stored.
Changes
If this policy changes, the new version will be posted here with a new effective date. If the app ever starts collecting data, the policy will say so before that happens.
Contact
Questions about privacy: support@12sierras.com