Last updated: 2026-09-10
This Privacy Policy explains what information is collected when you use PercentFox (the “Site”), how it is used, and the choices you have. By using the Site you agree to the practices described here.
Information we collect
Calculations. Every calculator on this Site runs entirely in your browser. The numbers you type are not sent to our servers, are not stored by us, and are not logged.
We do not collect personal information. There are no user accounts, sign-up forms, newsletter forms, or comment sections. We do not ask for your name, email address, or payment details.
Local storage. The Site saves a small number of preferences in your browser’s local storage — your light or dark theme choice, and your analytics choice from the consent banner. These never leave your device and can be cleared at any time through your browser’s site-data settings.
Standard server logs. Our hosting provider may keep routine access logs (IP address, browser type, pages requested, timestamp) for security and to measure aggregate traffic. These logs are not used to identify individual visitors.
Cookies and advertising
This Site is supported by advertising. We work with third-party vendors, including Google, to serve ads.
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.
- Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this Site and/or other sites on the internet.
- You may opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of a third-party vendor’s use of cookies for personalised advertising at aboutads.info/choices.
Depending on where you live, you may be shown a consent prompt from our advertising partners before personalised ads are enabled. You can change your choice at any time using that prompt.
Analytics
PercentFox uses Google Analytics 4, provided by Google, to understand in aggregate how the Site is used so we can improve it — for example page views, referrers, approximate location, and device type. It is not used to identify you personally.
Analytics runs with cookies off by default. The first time you visit, a small banner asks you to Accept or Reject analytics. Google Analytics cookies (_ga and _ga_*) are set only if you Accept; if you Reject — or before you choose — no analytics cookies are stored and Google Analytics runs in a cookieless mode that reports only aggregate activity. Your choice is remembered in your browser’s local storage.
Google Signals and the Google Analytics User-ID feature are turned off, and we do not send Google anything you type into the calculators. When a calculator link carries your numbers in the address (the part after ?), that part is removed before the page view is recorded — only the page path, such as /roi-calculator/, is sent. Google retains this analytics data for 14 months. You can also install the Google Analytics opt-out browser add-on or block cookies in your browser.
Links to other sites
The Site may link to external websites. We are not responsible for the privacy practices of those sites and encourage you to read their policies.
Children’s privacy
The Site is a general-audience reference tool and is not directed to children under 13. We do not knowingly collect personal information from children.
Your choices
- Accept or reject analytics on the consent banner.
- Reset that choice by clearing this site’s data (cookies and local storage) in your browser — the banner will ask again.
- Block or delete cookies in your browser settings.
- Use your browser’s private/incognito mode.
- Opt out of personalised ads using the links above.
Changes to this policy
We may update this Privacy Policy from time to time. Material changes will be reflected by the “Last updated” date at the top of this page.
Contact
Questions about this policy can be sent to hello@percentfox.com.

