An app that helps friends and families manage a shared budget and save for group goals like vacations or shared bills.

Managing shared finances within a group—whether it's roommates splitting rent, friends planning a trip, or family saving for a common goal—can often become chaotic and stressful. Inspired by this everyday problem, I designed a mobile app called Nest: a simple, intuitive, and collaborative platform that helps groups manage a shared budget and save together effectively. This case study walks through the full design process of Nest, from identifying the problem to delivering a functional, user-centered solution. You'll discover how I approached the challenge using design thinking principles—empathizing with users, defining clear pain points, ideating meaningful solutions, prototyping user flows, and testing for usability. The goal was not only to create a tool for managing money, but also to reduce financial friction in relationships by fostering trust, transparency, and teamwork.