Hapikey - A key to your happiness, is a personal happiness tracking diary. It helps users understand their happiness index and also their relations better. The App is designed to keep the memories alive through keeping a track of all the emotions that were felt. These emotion induced moments can be shared or just kept to oneself. The App makes one relive the happy moments collectively or with a single person. One can rate the emotions and/or express feelings through use of text/photos. Using all these feeds by the User, the Happiness score is calculated by an underlying algorithm, which helps them monitor themselves through time. This Happiness score is translation into design through use of emoticons. Vibrant colour gives a happy goody feel. The design elements used enhances the idea of helping the users look at the positive side of things always.