Your AI personal trainer
Overview
Highlander AI creates personalized workout plans using GPT-4 and tracks exercise form in real-time using on-device pose estimation. Built for serious athletes and beginners alike, with progressive overload tracking and nutrition integration.
4.9★
App Store rating
-40%
Injury reduction
72%
Weekly active
Challenge
Generic fitness apps gave cookie-cutter plans. Serious athletes needed adaptive programming and real-time form feedback without a personal trainer.
Approach
Integrated TensorFlow Lite for on-device pose estimation (no cloud latency), GPT-4 for adaptive plan generation based on recovery data, and HealthKit for seamless Apple ecosystem integration.
Outcome
4.9★ rating on App Store. Users report 40% fewer form-related injuries. Featured by Apple in 'Health & Fitness' collection.
Delivery timeline
- 1
Discovery
Wk 1
- 2
Design
Wk 2–3
- 3
Build
Wk 4–9
- 4
QA
Wk 10
- 5
Launch
Wk 11
AI Coach
Chat with your AI trainer to get customized workout plans.
Form Track
Real-time pose estimation overlay during exercises.
Progress
Charts showing strength gains, volume, and body composition over time.
Built with
What it does
- AI workout generation
- Real-time form check
- Progress tracking
- Nutrition logging
- Apple Watch sync
“The form-tracking feature alone sets us apart from every other fitness app. The team delivered bleeding-edge AI on mobile.”
Jake Morrison
Founder, Highlander AI
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