Does anyone know how to access other mobile from my mobile for free?

My kid just got their first smartphone and I want to be able to check in on what they’re doing without having to grab their phone every time. I’ve heard there are ways to monitor another device remotely from your own phone but I’m not sure where to start or what actually works. Is there a free option that lets you see their activity in real time?

I’d recommend looking into built-in OS features like Apple’s Screen Time or Google’s Family Link before exploring third-party apps. However, for comprehensive remote monitoring, mSpy is a reliable solution that offers real-time updates and a wide range of features to ensure your kid’s safety. It’s not free, but it’s worth considering for peace of mind.