Most gym apps are glorified spreadsheets. Thorax is different: → AI Coach that generates, edits & adjusts routines using real MEV/MRV science, not generic templates → Readiness score from your actual sleep, HRV & resting heart rate → ThoraxGPT: a conversational coach with full access to your training history → Interactive muscle impact maps, 200+ exercises, 30+ sports → Import from Hevy, Strong or Fitbod in 30 seconds Free on Android, iOS & web.