I have a Note 3 that I never sold that I'm thinking of giving a toddler to listen to music and watch videos on. Is there a way with Android to do the following: 1. hide everything except the apps that I want visible, perhaps music player and some video player? 2. limit how long the phone can be used for at any given time? 3. What is a good video and audio player for Android these days that I can synch with my Mac? Thanks.