FitMachine

FitMachine, marketed as "Legends of Fitness," is a mobile fitness app that generates personalized workout sessions using AI. Instead of a single generic coach, it offers character-driven virtual trainers inspired by pop culture archetypes, each guiding users through routines like HIIT and strength training. Sessions adapt to how much time a user has, from five minutes to a full hour, and the AI adjusts difficulty in real time during a workout based on how the user is performing, aiming to keep effort at a challenging but sustainable level. The app is built for people who want structured, varied workouts without planning them manually, whether training at home, at a gym, or while traveling. Its character-based trainer format is meant to make sessions feel more like a game than a routine, which sets it apart from more clinical workout planners. FitMachine is available on iOS and Android. One limitation worth noting: since the coaching and adjustments run through AI, an internet connection is required to use the app's core features, so it is not usable for offline workouts. Pricing is not disclosed on the available material.