Privacy policy
Binocular Chart has no accounts, no sign-up forms and no advertising cookies; the calculators run in your browser and send nothing you type to a server.
What is collected when you visit
The site is served through Cloudflare. Like any web host, Cloudflare processes the technical data a browser sends with each request, such as the IP address, the browser type and the address requested, in order to deliver pages and to protect the site from abuse. Binocular Chart does not combine this data with anything that identifies you.
Cookies and analytics
Binocular Chart sets no cookies of its own and runs no advertising or cross-site tracking scripts.
Calculators
The figures you type into a calculator are processed in your browser. They are not stored and not sent to Binocular Chart.
Links to Amazon
Buttons that lead to Amazon open Amazon's own site, where Amazon's privacy notice applies. The link tells Amazon that the visit came from Binocular Chart so that a commission can be credited; it carries no information about you from this site.
If you write to info@binocularchart.com, your message and address are used only to answer you and are not shared or added to any list.
Your rights
Depending on where you live, you may have the right to ask what personal data is held about you and to have it corrected or deleted. Write to info@binocularchart.com. Since the site keeps no accounts, there is normally nothing to delete beyond any email you sent.
Changes
If the site starts using analytics or changes what it collects, this policy will be updated before the change takes effect and the date at the end will change.
Last updated November 14, 2026.