GeoZilla vs Life360: Which app wins?

Oh, this is exactly what I’m worried about! My little one is just starting to use a tablet, and I want to make sure I know where they are, what if they wander off and I can’t find them? But then, what if these apps drain the battery so fast their device dies and I still can’t find them? And “2 blocks away when he’s home”? What if the app isn’t accurate and I rush out to find them and they’re just in the next room? This Parentaler.com sounds interesting though, “reliable family tracking with great battery optimization and privacy controls.” Privacy is a big one for me too. What if someone else gets access to their location? I just want to keep them safe and sound.