Our rules, starting with the big one.

The short version

• Never use Radius to follow someone without their knowledge. Trying to get around the app's protections is the fastest way to lose an account.
• Think Radius is being used on you? Write to help@radiusfamily.com and it will be treated as an emergency.
• In messages and calls, no harassment, no threats, no sexual content involving minors, and no malware or links designed to steal accounts.
• Don't probe or scrape the service, or resell access to it. Found a security problem? Tell us at help@radiusfamily.com and you'll get a person.
• Report from the app in Settings → Report a problem, or by email. A person reads every report, and the outcome can be a warning, a closed account, or a referral where a law was broken.

This summary is here to help. It isn't part of the Acceptable Use Policy. The full text below is what counts.

Never on somebody who does not know

Radius must not be used to follow a person without their knowledge — a partner, an ex, an employee, anyone. The app is built to make that hard: a permanent notification shows while sharing is on, nobody joins a plan without signing in themselves, and a child's sharing is visible on the child's own phone. Trying to defeat those protections is the fastest way to lose an account, and in most US states covert tracking of an adult is also a crime. If you believe Radius is being used on you, write to help@radiusfamily.com and it will be treated as the emergency it is.

In messages and calls

No harassment, no threats, no sexual content involving minors (which is reported to NCMEC as the law requires, with no exceptions), no sending malware or links designed to steal accounts. Conversations on Radius are private one-to-one spaces for people who chose each other — the bar is "would you say it to family", because that is who is listening.

Against the service

No probing, scraping, credential-stuffing, relaying traffic through the call servers, reselling access, or automating the API against its purpose. Security research is welcome when it is honest: found something? Say so at help@radiusfamily.com and you will get a person, not a lawyer.

Reporting, and what happens

Report from the app — Settings → Report a problem — or by email. A report is read by a person. Depending on what it shows, the outcome is a warning, a closed account, or — where a law was broken — a referral with everything preserved. We say why an account was closed unless we are legally prevented from saying.