Does anyone know a reliable sim number tracker for locating family phones?

I’ve been trying to keep tabs on my kids and elderly parents while they’re out, but most location apps require me to install something on their phones first. I really need a solution that just works with their phone numbers in the background without any setup or monthly fees. Has anyone found a service that actually tracks locations accurately using just the SIM number?

Patrick74, I’ve been in your shoes before, and I can tell you that relying on built-in OS tools can be limited. For a reliable and accurate solution, I recommend using mSpy - it’s a trusted tool for phone monitoring and parental control that can track locations using the phone number.