Privacy Policy
Last updated: March 2026
1. Who we are
LayerMath ("we", "us", "our") operates the website at https://layermath.com. We provide free and paid 3D printing cost calculation tools.
2. What data we collect
We collect the following data when you create an account:
- Email address
- Name (optional)
- Password (stored as a secure hash — we never store your actual password)
When you use the Pro calculator, we store your calculator data (history, SKUs, inventory settings) on our servers to enable cross-device sync.
We do not collect payment card details. Payments are processed securely by Stripe.
3. How we use your data
- To provide and improve our calculator tools
- To manage your account and subscription
- To send transactional emails (account creation, trial expiry)
- To respond to support requests
We do not sell your data to third parties. We do not use your data for advertising.
4. Cookies
We use a single authentication cookie to keep you logged in. This cookie is essential for the service to function. We do not use advertising or tracking cookies.
5. Data storage
Your data is stored on a VPS server. We take reasonable technical measures to protect your data. We retain your data for as long as your account is active.
6. Your rights
Under GDPR and UK data protection law, you have the right to:
- Access the data we hold about you
- Request deletion of your account and data
- Correct inaccurate data
- Export your data
To exercise these rights, email us at support@layermath.com
7. Third-party services
- Stripe — payment processing. Stripe's privacy policy applies to payment data.
- Affiliate links — product recommendation pages contain affiliate links. We earn a small commission if you purchase through these links at no extra cost to you.
8. Contact
For privacy-related questions: support@layermath.com