Privacy

The household you build — lines, devices, conditions, carrier, bill — is saved in your browser's local storage so it's there when you come back, and it's encoded into the page URL so you can bookmark or share a specific household. Neither of those sends your household to us; they stay on your device and in the link itself. The only time your household reaches our database is if you check the box and submit the "email me when promos change" form below.

When you check the consent box and submit the "email me when promos change" form, we store:

• • Your email address.
• • A snapshot of the household you built — each line's current phone, condition, and plan choice, your current carrier and bill, data need, and contract preference. No account numbers, payment details, or government ID are ever collected.
• • The date and time you gave consent, and the date you signed up.

We store your household snapshot so that a future alert (e.g. "AT&T just announced the Duo trade-in promo") can say whether it actually helps your specific lines, instead of a generic blast. We don't use it for anything else — no profiling, no resale to third parties, no advertising.

This data is stored in our database and is only accessible to us, using a server-side key that never reaches your browser or any third party. We don't sell or share it.

Email privacy@carriermath.com from the address you signed up with and ask us to delete your data. We'll remove your email and household snapshot within a few business days and confirm once it's done. You can also ask us what we have on file the same way.

We use Google Analytics to count visits and which pages and buttons get used, and Microsoft Clarity to see how people move through the page (clicks, scrolling, and session replays) so we can fix confusing parts. Both set cookies and collect standard device and browser information. Text you type, dropdown choices, and the names you give each line are masked in Clarity's replays, and the email form is never recorded. We send Google Analytics the page address without the part that holds your household. Clarity records the page address as it appears in your browser, which can include the household you built. Learn how Google and Microsoft use this data in the Google and Microsoft privacy statements. You can block both with any standard content blocker, and the site still works.

Some carrier links on this site may earn us a commission if you sign up through them — see the disclosure page. Clicking one is counted in our analytics (which carrier and route), but it doesn't send the carrier anything about your household.