Calculator data
Fee and profit calculations run locally in the visitor's browser. We do not receive or store the sale prices, item costs, shipping costs, tax amounts, target profits, or other values entered into a calculator unless a visitor separately includes them in an email.
Information collected automatically
Our hosting, security, and analytics providers may process technical information such as IP address, browser and device type, approximate location, referring page, requested URL, timestamp, performance data, and security events. Cloudflare provides hosting, DNS, traffic protection, and privacy-focused web analytics.
If you contact hello@marketplacemath.com, we receive the address, message, and attachments you choose to send. We use that information to answer the request, investigate corrections, prevent abuse, and maintain business records. Do not email credentials or sensitive financial records.
Cookies and local storage
The core calculators do not require an account or advertising cookie. Hosting and security providers may use essential technologies to deliver and protect the site. If advertising, consent management, or additional analytics are introduced, this policy and any required consent controls will be updated before those tools are activated.
Advertising and affiliate links
The site may later display advertising or include clearly disclosed affiliate links. Advertising partners can process device and browsing data under their own policies. Where law requires consent or an opt-out, appropriate controls will be provided.
Sharing and retention
We do not sell calculator inputs because we do not collect them. We may share limited data with service providers that host, secure, analyze, or operate the site; when required by law; or to protect rights and prevent abuse. Email is retained only as long as reasonably needed for the inquiry, records, disputes, and legal obligations.
Your choices
You can block nonessential cookies in your browser, use privacy signals supported by applicable providers, and request access, correction, or deletion of information you directly provided by emailing us. Rights vary by location and may be subject to legal exceptions.
Children
The service is intended for a general business audience and is not directed to children under 13. We do not knowingly collect personal information from children.
International use and changes
The site is operated for a U.S.-focused audience but may be accessed elsewhere. Data can be processed in the United States and other locations used by providers. We may update this policy as the site or law changes, with the effective date shown above.