Privacy Policy
Last updated: 8 November 2026.
This policy explains what personal data U Value Studio collects, why, and what rights you have over it.
Who we are
U Value Studio Ltd, a company registered in England and Wales (company number 17470726) with its registered office at 9 Stoughton Road, Oadby, LE2 4DS, operating as U Value Studio (the "data controller" for the purposes of this policy), can be contacted at support [at] uvaluestudio.com for anything relating to your data or this policy.
What we collect, and why
Most of what we collect is used on the basis that it's necessary to provide the service you've signed up for ("performance of a contract"). Where a different basis applies, it's noted below.
Your email address. Collected when you create an account, used to log you in (via a one-time link, so we never store a password) and to contact you about your subscription.
Your saved build-ups and custom materials. If you're on the full plan, the wall/roof/floor build-ups and materials you save are stored against your account so they're available next time you log in, on any device.
Billing information. Payments are handled by Stripe, which acts as Merchant of Record and is responsible for processing your payment, calculating and collecting tax, and handling billing records. Stripe is an independent controller of that payment data and has its own privacy notice. We never see or store your card number. We receive only your subscription status, plan and renewal date, so we can grant you access to the full plan.
Basic technical data. Standard web server logs (IP address, browser type, pages visited) are generated automatically by our hosting provider, as they are for essentially any website. We don't run any additional analytics or advertising tracking on top of this. The first time you open the calculator, our hosting provider also tells the page which country you are in, worked out from your IP address, so the calculator can open on your own country's regulations. Only the country is passed to your browser, and we don't store it. Lawful basis: legitimate interest, in keeping the service running and secure, and in showing you the right regulations.
Error reports and security alerts. To keep the service reliable and secure, our site automatically sends us a report when something goes wrong in your browser or on our servers. A page error report contains the error message, the page it happened on and your browser type. A security alert, for example a request that supplies an invalid security key or a forged payment notification, also contains the IP address of the device that made the request. These reports are emailed to us through our email delivery provider, and are held back so we are not sent repeats. They do not include your calculations, saved build-ups, login details or payment information. Lawful basis: legitimate interest, in keeping the service running and secure.
Who we share it with
We use a small number of specialist providers to actually run the service, each acting as a processor on our behalf:
- A cloud database and authentication provider, for account login and storing your saved build-ups and materials
- A web hosting provider, for hosting the website itself
- An email delivery provider, for sending account emails (login links and sign-up confirmations) and our own operational alerts
Payments are different. Stripe is our payment provider and Merchant of Record, so it processes your payment, manages your subscription and handles tax on these transactions in its own right, as an independent controller of that payment data under its own privacy notice. We receive only your subscription status, plan and renewal date.
These providers may process data outside the UK and the European Economic Area, including in the United States. Where they do, we rely on the safeguards built into their data processing terms: the UK International Data Transfer Addendum and the EU Standard Contractual Clauses, or the UK-US Data Bridge and EU-US Data Privacy Framework where the provider is certified under them. We don't sell your data to anyone, or share it for advertising purposes.
How long we keep it
We keep your account data for as long as your account remains active. If you cancel your subscription, your saved build-ups and materials stay on your account but can't be opened while the account is on the free plan.
- If you ask us to delete your account: we'll delete your personal data, including your saved build-ups and materials, within 30 days of your request.
- If you stop using the service: if an account has had no sign-in for 24 months, we'll delete it, along with its saved data.
- Billing records: we're required to keep records of payments for tax and accounting purposes, which we do for six years. Our payment provider keeps its own records under its own policies.
- Error reports and security alerts: these are emailed to us and kept only for as long as we need them to investigate a problem, and in any case no longer than 12 months.
Cookies and local storage
We don't set tracking cookies ourselves. We use your browser's local storage to make the service work. It holds your light or dark mode preference, your login session so you stay signed in, a session identifier that lets us keep each paid account to one signed-in device at a time, a note of whether your account is on the full plan so the calculator opens quickly (it is always re-checked with our server), the territory you last used so the calculator reopens on it, whether you have the Advanced settings switched on, how you like the labels in the 3D view shown, and, if you choose to add one, the logo you upload for your PDF reports. The logo stays in your browser and is not uploaded to our servers. None of this is used for advertising or tracking. The fonts on this site are served from our own servers, so your browser does not connect to Google or any other font provider to display them. If you go through checkout, our payment processor's own payment pages (hosted on their domain, not ours) will set their own cookies under their own privacy policy, which we don't control.
Your rights
Under UK GDPR (and EU GDPR, where it applies to you), you have the right to:
- Ask what personal data we hold about you, and get a copy of it
- Ask us to correct anything that's inaccurate
- Ask us to delete your account and personal data
- Ask us to restrict or object to certain processing
- Receive your data in a portable format
To exercise any of these, email support [at] uvaluestudio.com. You also have the right to complain to the UK's data protection regulator, the Information Commissioner's Office (ICO), if you're unhappy with how we've handled your data. If you're in the EU or EEA, you can instead complain to your local data protection authority; a list is published by the European Data Protection Board.
Users outside the UK and EU
If you're in the United States, Canada or Australia, privacy laws where you live (for example state privacy laws in the US, PIPEDA in Canada and the Privacy Act 1988 in Australia) may give you similar rights to those above. You can use them by emailing support [at] uvaluestudio.com, and we'll respond in line with the law that applies to you. We don't sell your personal information, and we don't share it for advertising.
Children
This service is intended for professional use and isn't directed at children. We don't knowingly collect data from anyone under 18.
Changes to this policy
We may update this policy as the service changes. Significant changes will be reflected in the "last updated" date above.