Tetsu: AI Gym & Diet Coach

Akari Labs LLC

In-app purchases

About this app

Tetsu (Japanese for "iron") is the all-in-one gym companion that plans your
training, tracks your nutrition, and shows your progress — so the only
thing left to do is pick up the iron.

BUILD YOUR WEEK WITH AI
Tell Tetsu your goal, equipment, and schedule, and it builds each day's
routine for you — workout, meals, water, steps, and sleep on one timeline.
Rebuild any day in seconds when life gets in the way.

LOG WORKOUTS IN SECONDS
• 1,300+ exercises with animated demonstrations
• Weight × reps, time, distance, and assisted sets
• Previous-workout prefill — your last numbers are already there
• Rest timer with notifications, warm-up/drop/failure set tags
• Personal records detected automatically, with a little confetti

EAT FOR YOUR GOAL
• Daily calorie and macro targets computed from your profile
• Log meals from a curated library, quick-add, or plain English —
"2 eggs and toast with butter" just works
• Build weekly meal plans and reusable meal templates

WATCH YOUR BODY CHANGE
• Weight trend with moving average and goal projection
• 15 body measurements with charts and body-composition insights
• Progress photos with guided poses — then compare any two sessions
side-by-side or with an overlay slider

STAY ACCOUNTABLE
• Streaks, a GitHub-style training heatmap, and ~100 achievements
• Weekly progress reports and smart reminders
• Full workout history, calendar, and per-exercise records

TETSU PRO
Go further with Pro: plan all 7 days with AI, unlock before & after photo
comparison, advanced analytics, per-exercise charts, recovery readiness,
AI weight suggestions on every set, unlimited templates and custom foods,
and 100 AI requests per day. Monthly or annual, starting with a 7-day free
trial. Subscriptions auto-renew until cancelled in your Play Store settings.

Your data stays yours: progress photos never leave your device, and you
can export or delete everything at any time.

What’s new

AI-planned training weeks, one-tap meal logging, machine scanner, progress photos and streaks. Launch special: Tetsu Pro free for early Android users.