Privacy Policy

The short version

The test and the calculators run entirely in your browser. Your answers, your age, your prescription numbers and your result are never sent to us. We do not ask for your name or email, and there are no accounts. The site does not use your camera.

What stays on your device

Theme choice. If you switch between light and dark, your browser remembers it.
Screen size setting. If you match a bank card to set the print size, your browser stores one number, the scale of your screen. No card details are read or stored. The card is only held against the screen.
Last result. Your most recent suggested strength and its date, so that you can compare next time.
Offline copy. Your browser keeps a copy of the pages you visit so the site works without a connection.
Dismissed notices. If you close a notice, your browser remembers that for a week.

You can clear all of these by clearing this site's data in your browser settings.

Shared links

When you copy a link to a result, the strength and the age you entered are written into the link itself. Anyone you send it to can see them. Nothing is stored on a server.

Analytics

We use Google Analytics to count visits and see which pages are useful. It collects information such as pages viewed, approximate region, device type and referring site, using cookies. See how Google uses information from sites that use its services.

Advertising

This site shows ads from Google AdSense. Google and its partners use cookies to serve ads based on your visits to this and other websites. You can turn off personalized advertising in Google Ads Settings, or opt out of many vendors at aboutads.info.

Hosting

The site is hosted on Cloudflare, which processes technical data such as IP addresses to deliver pages and protect against abuse.

Children

This site is for adults and does not knowingly collect personal information from children.

Changes and contact

We will post any changes on this page with a new date. Questions go to hello@readingglassestest.com.