An AI-powered mobile fitness coach that watches your form, counts your reps, and guides your fitness journey — all from your phone's camera.
Most new gym-goers face the same barriers: no guidance, no feedback, and no confidence. trAIn was built to change that.
Beginners don't know which exercises to do, how to structure workouts, or where to even begin their fitness journey.
Exercising alone means nobody corrects your form. Bad habits build up silently, increasing injury risk and reducing effectiveness.
Without tracking or summaries, users can't see whether they're improving — making it easy to lose motivation and quit.
Personal trainers are expensive. trAIn brings guided coaching to anyone with a smartphone — at zero cost.
A complete training pipeline: from onboarding to real-time coaching to post-workout analysis.
A short, beginner-friendly questionnaire captures age, weight, goals, and motivations to personalize every session.
User ExperienceCurated bodyweight routines — push-ups, squats, lunges, crunches — tailored for beginners with clear instructions.
User ExperienceOn-device computer vision tracks body landmarks at 30fps, enabling live rep counting and movement phase detection.
Computer VisionInstant feedback on depth, alignment, posture, and range of motion. Corrective cues appear in real-time as you move.
Computer VisionSession summaries with rep totals, quality scores, fatigue estimates, and comparison data over time.
Data & AnalyticsA motivational AI persona delivers personalized recommendations, reflections, and encouragement tied to your goals.
AI CoachFrom camera frame to coaching feedback in milliseconds — all running on-device for speed and privacy.
Every screen is designed to be readable at arm's length while exercising — minimal friction, maximum clarity.
Sets the tone with Doctor Dopamine and guides users into profile setup.
Short form collecting age, weight, goals, and motivation preferences.
Browse beginner routines with clear descriptions and expected difficulty.
Camera view with live rep count, form feedback, and exercise progress.
Performance summary with quality scores, rep data, and AI coaching.
View past sessions, track trends, and identify areas for improvement.
A modern Android-native stack combining Jetpack Compose, on-device ML, and cloud services.
Doctor Dopamine is the AI personality behind every motivational message, post-workout reflection, and goal-aware recommendation in trAIn. More than a chatbot — it's a training companion that remembers your goals and celebrates your progress.
Five CSUN Computer Science seniors combining frontend, computer vision, backend, database, and AI expertise.