Crestly

Crestly is the fitness tracker built to work with your AI. Log workouts, nutrition, sleep and recovery in one beautifully designed app — then export it all as clean JSON or Markdown your favourite AI can actually read, and bring its plan back in. No paywall, no subscription. TRAIN • Build routines and run guided workouts with a live rep ring, rest timers and superset support • Smart auto-progression that knows when to push and when to hold • Full exercise library with form guidance FUEL • Fast nutrition logging with macro tracking and a barcode scanner • Every food auto-tagged with a food-type icon and macro-dominance tint, so your diary is scannable at a glance — custom foods included • Protein floor, calorie band and supplement checklists RECOVER • Sleep, weigh-ins, wellness and symptom logging • Apple Health sync for steps, energy and workouts • Recovery, strain and sleep insights OWN YOUR DATA • Export exactly what you need; import an AI-generated plan back in • Optional live data feed so an AI assistant can read and update your log with your approval • Everything stays on your device Crestly is free, has no ads you're forced to watch, and never locks features behind a subscription.