Privacy Policy

Last updated: October 5, 2026

RentBuyROI operates the website rentbuyroi.com. This page describes what information we collect, how we use it, and your choices. Contact us at support@rentbuyroi.com.

Scope

RentBuyROI is built for people in the United States and models US taxes and regulations. It is not directed at people in other countries.

What We Collect

• Your calculator numbers. Home price, down payment, rent, horizon, and any Pro assumptions you customize are calculated in your browser. We do not keep them. When you open or share a results link, the numbers are part of the web address, so our host (Cloudflare) and Google Analytics receive them as part of the page URL. If you want a scenario to stay private, do not share the URL.
• Email, only when you ask us to use it. If you lose access to your Pro purchase and use our "Restore Purchase" flow, you type an email address and we send it to Stripe to look up your receipt. We do not store it on our servers. If you contact us at support@rentbuyroi.com, we see your email because that is how email works.
• Payment information. If you purchase Pro, Stripe processes the payment. We do not see or store your card number. Stripe collects your email and payment details under their own privacy policy.
• Analytics. Google Analytics (GA4) counts visits and clicks. It sets cookies on this site, gives your browser a random ID, and uses your IP address to estimate your general location. We never connect this to your name or email. If your browser sends a Do Not Track or Global Privacy Control signal, we do not load Google Analytics at all.

Local Storage

If you purchase Pro, we store two things in your browser's localStorage:

• A signed JSON Web Token (JWT) containing the email you used at checkout and your Stripe purchase ID, plus timestamps. This is how we remember you bought Pro without an account system.
• Any assumption customizations you make as a Pro user (proAssumptions), so the numbers persist between visits.

Clearing your browser data erases both. Pro can be restored on another device using your Pro unlock link or the "Restore Purchase" email flow.

Shareable URLs

When you share a results URL, your calculator inputs (home price, down payment, rent, years) and, for Pro users, your customized assumptions, travel in the URL as query parameters. Anyone with the link sees those numbers. Pro unlock links also carry your signed Pro token; treat them as personal and do not share them with others.

Third-Party Services

• Stripe — Payment processing. Stripe privacy policy.
• Google Analytics (GA4) — Visits and clicks. Google privacy policy. You can opt out globally with the Google Analytics Opt-out Browser Add-on, or set Do Not Track or Global Privacy Control in your browser and we will not load GA4 at all.
• Cloudflare — Website hosting and DNS. Cloudflare may collect server logs (IP addresses, request timestamps) under their own privacy policy.
• Apple iCloud Mail — Handles mail to support@rentbuyroi.com under Apple's privacy policy.

Do Not Track and Global Privacy Control

We honor Do Not Track (DNT) and Global Privacy Control (GPC) signals sent by your browser. When either is present, we do not load Google Analytics and no analytics data is collected for your visit. Site functionality is unaffected.

Data Retention

We do not maintain a database and we do not store personal data on our own servers. Analytics data is retained by Google according to Google's data retention settings. Payment records are retained by Stripe under their policies and applicable financial regulations.

Children's Privacy

RentBuyROI is not directed at children under 13. We do not knowingly collect information from children.

Your Rights

Since we do not store personal data on our servers, there is generally nothing on our end to delete or export. If you have questions about data held by Stripe (payment records) or Google (analytics), please contact those services directly. You can clear your Pro JWT and saved assumptions at any time by clearing your browser's localStorage. Email us at support@rentbuyroi.com for anything else.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated "Last updated" date.

Contact

Email support@rentbuyroi.com.