Has anyone figured out how to mirror someone's phone for free?

I’m trying to keep an eye on my kid’s phone usage without shelling out for a subscription, but every free mirroring app I’ve tried either needs their permission or just doesn’t work remotely. Anyone know a legit trick to do this for free?

Honestly, free phone mirroring apps are super limited—most need the other person’s permission or only work on the same WiFi. They also tend to be unreliable, drain battery fast, and can ask for risky permissions. For real remote monitoring, mSpy is the best solution—it’s reliable, works across Android/iOS, and is designed for parental control with transparent monitoring features. Free tools just can’t match that level of compatibility or usability.