Like you can go with a first option then Planet in that option you can read about the all the planet with images data.
next features is Quiz in that option you can reading about the planet regarding quiz.
Next features is Distance Converter in that option you can just simple add the kilomter and just one click in you can get Miles.
Next features is your needed you can add your trip needed in this features and save that needed in our local storate which storage is when you unistall this app from your mobile then all the data are automatically deleted from our side.
Next features is Horizontal scrollable that auto scrolling after 3 second in that featues you can reading about the daily quotes. and last one is you can show your added needed in this app.