Case study · Health · AI“Your head, back over your shoulders”
The product
Rebase is a six-minute daily coach for people who sit six or more hours a day. A short quiz and a guided photo scan set up a personal 4-week plan for the neck, upper back and chest. A 3D coach — him or her, your choice — shows every move, then does it with you, with spoken cues and captions.
The challenge
Stretching apps give people a picture and a timer, and most are dropped within a week. Rebase had to feel like a real coach: safe for a sore neck, short enough for a workday, and private — posture photos stay on the phone.
How we built it
- Guided front and side posture scan, with results in plain words
- A 4-week plan with weekly check-ins and re-scans on day 14 and 28
- Learn and flow player modes, with a “This hurts” option on every move
- Paywall, streaks, badges, discreet reminders and a home-screen widget
What it proves
- Every state designed — camera off, poor lighting, offline, purchase failed.
- Light and dark themes with two coaches, across 69 screens.
- A full launch kit: app icon, launch screen and landing page.
