trAIner - Fitness AI

AI-powered workout tracker with technique and session analysis and social feed.

trAIner is your all-in-one personal training companion, built for athletes who take their progress seriously.

TRAIN SMARTER Build fully customizable workout routines with exercises, sets, reps, weight, and RPE. Start a session from any routine, make adjustments on the fly, and keep a complete history of every workout you've ever done.

TRACK YOUR PROGRESS See exactly how you're improving. trAIner tracks your progression for every exercise over time, giving you clear charts so you always know when to push harder.

AI TECHNIQUE ANALYSIS Upload a video of your lift and let trAIner's AI analyze your form. Get joint-by-joint feedback on squats, Romanian deadlifts, bench press, and more — so you can train safely and correct errors before they become injuries.

ORGANIZE YOUR TRAINING Group routines into blocks or training phases. Browse a filterable exercise gallery by target muscle and equipment. Add custom exercises to fit your exact program.

SOCIAL & COMMUNITY Follow other athletes, share your sessions, like and comment on their progress, and discover new routines. Copy a routine you like with one tap and make it your own.

AVAILABLE IN ENGLISH AND SPANISH The full app experience in both languages.

trAIner is a Progressive Web App (PWA) optimized for mobile. No bloat, no subscription required to use the core features.