Emotion Storage (감정저장소) is a lifestyle application designed for iPhone users that allows individuals to visualize and document their emotions through expressive icons and emotional pebbles. Users can create moments that reflect their emotional states, providing a unique way to record and understand their feelings over time.

The app also includes features such as an emotion type test, which utilizes the emotional pebbles collected during moment creation to help users identify their emotional tendencies. Additionally, it offers analysis of stored emotions, a timeline to review past emotional types, and options for data backup and retrieval, ensuring that users can safely maintain their emotional records.