बच्चू: बच्चों की खुशी जरूरतों को सीखने की है, जो बच्चों के लिए एक आवेदन पत्र है।

CHappie, an acronym for Children's Happiness, is an application especially made for children who are currently undergoing the first stages of learning. The name is also based on a movie entitled under the same name. The movie Chappie revolves around an Artificial Intelligence robot that needs to be taught in order for it to learn things. Just like how a child develops, the robot Chappie undergoes the same things. This application's aim is the same as those, teaching children some basic things that they need to learn in order for them to gradually develop. The app offers five areas of basic lessons namely, the alphabet, colors, animals, shapes and numbers. It contains the audio on how to say each item in the lessons, there are also quizzes and a video for a song of each lesson.