... educate. You can create a quiz app (Chapter 8) to help you and your class-mates study for a test, or even a create- a-quiz app (Chapter 10) that lets the users of your app create their own quizzes ... the location of your friends or colleagues at a concert or conference, or your own custom tour app of your school, workplace, or a museum.Preface xix High-tech appsYou can create apps that ... Inventor download.The App Inventor programming environment has three key parts, all shown in Figure 1-2 :• The Component Designer, shown on the left side of Figure 1-2 , runs in your browser...