How to install an app

1. A parent allows installing. In Settings → Parent controls on the device, switch on Allow installing (it is off until then, and every install asks for the parent PIN).
2. Pick an app in the store and press Get the install code.
3. On the device choose Settings → Install an app, and type the code with the knob. Or open the device's page on a phone and type it there.
4. The device turns its WiFi on, downloads the app, checks that it is genuine, and turns WiFi off again.

A code belongs to one device once it is used. To put the app on another device, get another code.