Privacy Policy — castleX designer

CASTLE X LTD (company no. 17205101, registered in England and Wales) · 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom · info@castlex.uk · last updated 06 October 2026

CASTLE X LTD (company no. 17205101, registered in England and Wales) is the data controller for personal data processed through castleX designer. This policy explains what we collect, why, and your rights under UK GDPR and the Data Protection Act 2018.

What we collect

Why we use it (lawful basis)

We do not sell personal data and we do not use it for advertising.

Who we share it with

Some providers process data outside the UK; where they do, transfers rely on the UK International Data Transfer Agreement or an adequacy decision.

How long we keep it

Account data and projects: for as long as the account exists and up to 12 months after it closes. Sign-in and security logs: 12 months. Usage events: 12 months. Free audit requests: until the enquiry is closed and at most 24 months, unless you become a customer. Billing records: 6 years, as required by UK tax law. Uploaded survey files: as shown in the Service (currently 30 days unless saved to a project).

Your rights

You can ask for a copy of your data, have it corrected or deleted, restrict or object to its processing, and receive it in a portable form, by e-mailing info@castlex.uk. We answer within one month. You may also complain to the Information Commissioner's Office (ico.org.uk).

Cookies

The Service uses one strictly necessary cookie that keeps you signed in, one first-party cookie on our website that holds a random visitor id so we can count visitors and see which steps of our own site and app are used (it identifies a browser, not a person, is never shared and is not used for advertising), and the browser's local storage to remember your own settings on your device. No third-party advertising or analytics cookies are set.

Security

All traffic is encrypted (HTTPS). Sign-in is by one-time e-mail code; only one session per account is active at a time. Access to the Service and to administration pages is logged.

Changes

We will post any changes here and, where they matter, tell you by e-mail.