An AI tutor that guides, not answers
Zero Gravity Tutor is a mobile-first study app for students. Its AI tutor talks them through their work step by step, rather than just giving them the answer.
I designed the concept the app's built on, and then the bits students use most: the message box where everything starts, the illustration and thumbnail system, lessons, and practice.
TL;DR
The app had grown one feature at a time, with nothing really holding it together. I rebuilt it around whichever subject a student's studying, cut the navigation down to four places, and made one message box the front door to everything. Then I designed lessons that make students think, a practice page that always has a first step, and over 100 illustrations in one style.
The concept went live on 26 August 2026 and is now the foundation for the rest of the app. Quizzes start in about 7 seconds, down from 50.
Role
I designed the original concept as a working prototype in July 2026. Dan then took it into the real product and rebuilt everything underneath so it could cope with a whole school's worth of students. Joe built the lesson structure and the quiz, which I then redesigned into the learning experience below.