Yestr is an app that helps strengthen bonds between siblings by encouraging them to reminisce together over daily questions. The app was founded by Jeff Lillibridge, who wanted to create a way for him and his sister to reconnect after being estranged for some time. Yestr connects users with their siblings through daily "Yestories" that spark specific memories from growing up, allowing users to bond over past experiences. After registering, users generate an invite code, which is sent to their sibling, and can only see their responses once they've submitted their own. The app encourages daily interactions by tracking how many consecutive days both siblings answer questions. Jeff Lillibridge built Yestr using Bubble's no-code platform, which allowed him to build the app quickly without outsourcing it to a developer. With around 50 users so far, Yestr aims to validate its idea and eventually monetize the project, with plans to grow the user base and prove that the app strengthens sibling bonds.