Privacy Policy

1. Who is responsible for your data

The data controller is [LEGAL ENTITY NAME], [REGISTERED ADDRESS]. You can reach us at [CONTACT EMAIL] about anything on this page.

2. Using Extruse without an account

The whole calculator works without signing up. In that mode no server is involved in your data:

• Your workshop — printers, materials, products, spools, print queue, print log and history — is stored on your own device.
• G-code, 3MF, STL and OBJ files you open are read inside your browser or app and are never uploaded. Only the numbers we extract from them, such as print time and filament weight, are kept, and only on your device.
• A quote you share as a link carries the quote inside the URL fragment — the part after #. By design a fragment is never sent to any server, ours included.
• Clearing your browser storage, or deleting the app, erases this data permanently. We cannot restore it, because we never had it.

3. Using Extruse with an account

If you create an account, we store:

• your email address and display name, to identify the account;
• your workshop data — printers, materials, products, spools, stock movements, print queue, print log, quotes and settings — so that it reaches your other devices and survives a lost phone;
• subscription status, once paid plans exist.

This is held in our database at Supabase, hosted inside the European Union. Access is enforced at the database level: rows are readable only by the account that owns them. Model files are still not uploaded — the account changes what happens to your numbers, not to your files.

We do not sell your data and we do not use it to train anything. Your pricing, your customers and your production history are your business, not our product.

4. Signing in with Google

If you choose Google sign-in, we ask Google only for your basic profile and email address. We never see your Google password. You can revoke our access at any time in your Google account permissions; that stops future sign-ins but does not by itself delete data already stored — use section 8 for that.

Email-and-password sign-in is available if you prefer not to involve Google.

5. Email we send

Account email — confirmation, password reset, and notices about a quote your client reacted to — is delivered through an email provider on our behalf. They receive the address and the message, and nothing else about you.

6. Payments

When paid plans exist, payments will be processed by a payment provider. Card numbers are entered on their systems and never reach our servers; we receive only the outcome of a payment and what an invoice needs.

7. Server logs

Our web server keeps standard access logs: IP address, the page requested, the time, and the browser’s user-agent string. They exist to keep the service running and to investigate faults and abuse. They are kept for [RETENTION PERIOD, e.g. 30 days] and then discarded.

8. Tracking

Extruse contains no advertising and no third-party analytics. There is no tracking cookie to consent to, because there is nothing tracking you. If you sign in, your browser stores a session token so that you stay signed in; it is strictly necessary and is not used to follow you anywhere.

We may add crash reporting, so that faults get fixed instead of guessed at. If we do, this page is updated before it starts, and what it collects is named here.

9. Your rights

If you are in the EU or UK, the GDPR gives you the right to:

• see what we hold about you;
• take it with you — Extruse has a one-click export that writes your entire workshop to a file, so you do not need to ask us;
• correct anything wrong;
• delete your account and its data;
• object to processing, or complain to your national data protection authority.

Write to [CONTACT EMAIL] and we will act within 30 days. Our legal basis is performing the contract you enter into by using the service, and our legitimate interest in keeping it secure and working.

10. How long we keep things

Account data is kept while the account exists. When you delete your account, your workshop data is removed from our live database within [e.g. 30 days] and disappears from backups as those age out, within [e.g. 90 days]. Invoicing records are kept as long as tax law requires.

11. Children

Extruse is a tool for running a business and is not intended for anyone under 16. We do not knowingly collect data from children.

12. Changes to this policy

If we change how we handle your data, we update the date at the top and, for anything material, tell account holders by email before it takes effect.