Tetsu: AI Gym & Diet Coach

Log sets in seconds, grade effort with RPE, watch your estimated 1RM climb, and let Sensei plan your training and meals. Your whole fitness life in one place.

Tetsu is the gym and diet tracker built for people who train seriously and want one app for all of it: workouts, nutrition, body progress, and an AI coach that actually knows your numbers.

TRAIN • Log sets in seconds with weight, reps, and RPE effort grades • Estimated 1RM tracking shows your real strength trend, and tells you when a lift has stalled • Automatic PR detection with shareable record cards • Smart weight suggestions that adapt to how hard your last session felt • Rest timer, warm-up and drop-set tagging, per-exercise history • A library of 1,200+ exercises with animated demonstrations

EAT • Daily calorie, protein, carb, and fat targets computed for your body and goal, or set your own • Log meals from a huge food library, by photo, or by voice • Meal plans and reusable custom meals

COACH • Sensei, your AI coach, builds routines, plans meals, and answers with your actual training data • Weekly routines for training, meals, water, steps, and sleep • Connect Tetsu to AI assistants like Claude and ChatGPT to ask about your training and log on your behalf

PROGRESS • Strength charts, muscle-group volume, and honest weekly stats • Body weight, measurements, and progress photos with comparisons • 100+ achievements to earn and share

Tetsu Pro unlocks unlimited AI coaching, exports, and advanced features. Free to download and train. Subscriptions renew unless cancelled at least 24 hours before the period ends; manage in your App Store account settings.

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