Legal
Privacy policy
The short version: your measurement is computed in your browser and never leaves it. There are no accounts, no cookies and no tracking. The long version is below.
Effective 30 August 2026
Everything stored on your device
Two keys, both local, both deletable
| Key | What it holds | Why |
|---|---|---|
| rsa.theme | Light or dark preference | So the site opens in the theme you chose instead of flashing the wrong one. |
| rsa.calibration.v1 | Your screen scale — pixels per millimetre | So you do not have to re-calibrate against a card or ruler on every visit. |
What we collect
Nothing that identifies you. There are no accounts, no sign-up, no newsletter and no login on this site, so there is no name, email address or password for us to hold.
Your ring size and your screen calibration are calculated in your browser and stay there. They are never transmitted to us or to anyone else, and we never see them.
Analytics and advertising
At the effective date of this policy, ringsizeai.com runs no analytics, no tag manager, no advertising network, no A/B testing tool and no third-party embeds or web fonts. Pages are static files.
If that ever changes, this page will be updated before the change goes live, the effective date at the top will move, and anything requiring consent under the GDPR or the ePrivacy Directive will ask for it first.
Server logs
The site is served by a hosting provider that, like every web host, records standard request logs: IP address, timestamp, requested URL, referrer and user-agent string. These are generated by the infrastructure for security and reliability, are retained for a short period by the provider, and are not used by us to profile visitors or build an audience.
If you email us
If you write to contact@ringsizeai.com, we hold your message and address for as long as it takes to answer you and handle any follow-up. We do not add you to a mailing list, and we do not pass your address to anyone else.
Children
The site is a measurement tool aimed at a general audience and collects no personal data from anyone, of any age. It is not directed at children under 13, and no data is knowingly collected from them because none is collected from anybody.
Your rights
Under the GDPR, the UK GDPR, the CCPA and comparable laws you have the right to access, correct, delete and port your personal data, and to object to its processing. Because we hold no personal data about visitors, there is normally nothing to access or erase — the data the site produces is already under your sole control, in your own browser, and you can delete it by clearing site data.
You can exercise any of these rights, or complain about how the site handles data, by writing to contact@ringsizeai.com. We answer within 30 days. You also have the right to complain to your national data protection authority.
Links to other sites
Pages here may link to jewellers, standards bodies or reference material. Those sites have their own privacy practices, which we do not control and are not responsible for. This policy covers ringsizeai.com only.
Changes to this policy
If this policy changes, the effective date at the top of the page changes with it, and the previous version is superseded from that date. Material changes — new analytics, advertising, or any collection of personal data — will be described here plainly rather than buried.
Contact
Questions about this policy go tocontact@ringsizeai.com, or through the contact page. Terms of use are set out in theterms & conditions.