Summary
Calculators run entirely in your browser; the numbers you type are not sent to us. We only receive information you choose to submit through a form (for example your name and email), plus standard technical data needed to serve and advertise on the site.
Information we collect
- Form submissions: name, email and the details you provide in contact, growth-plan, contest, career, sponsorship or newsletter forms. Forms are delivered to our inbox via a form-processing service (FormSubmit).
- Local storage: preferences such as theme, currency symbol, cookie choice and recent calculations are stored only on your device.
- Technical data: our host (GitHub Pages) and advertising partners may process IP address, browser type and pages viewed for security and delivery.
Advertising and cookies
We use Google AdSense to display ads. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on visits to this site and/or other sites on the Internet. You may opt out of personalised advertising by visiting Google Ads Settings or www.aboutads.info. Learn how Google uses data at How Google uses information from sites or apps that use its services.
Visitors in the EEA, UK and Switzerland are shown a Google-certified consent message before personalised ads are served. You can change your choice at any time by clearing this site's cookies.
Donations
Donations are processed by PayPal under PayPal's privacy policy. We receive the payer's name, email and amount, never card details.
How we use information
- To respond to your request and deliver your growth plan.
- To run contests and contact winners.
- To send the newsletter if you subscribed (unsubscribe anytime).
- If you opt in, to introduce you to relevant partners — we never sell your data.
Retention & rights
We keep submissions only as long as needed for the purpose. Depending on where you live (for example under GDPR, UK GDPR, CCPA/CPRA, PIPEDA or Québec's Law 25), you may request access, correction, deletion or portability of your data, or withdraw consent. Use our contact form and choose “Privacy request”.
Children
This site is not directed to children under 13, and contests are open only to adults.
Changes
We will post any changes to this policy on this page with a new date.
Last updated: October 27, 2026