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.
Terms: https://www.tetsu.fitness/terms
Privacy: https://www.tetsu.fitness/privacy
I’ve been using TETSU for a while now, and I honestly love it! ❤️ What I like most is how personalized everything feels. What I love is how personalized it feels, like instead of just give me a basic workout plan, it gives me workouts based on my goals and also provides detailed information about what I should be eating and helps me track my calories.Having everything in one place has made it much easier for me to stay consistent without feeling overwhelmed. I’ve already noticed a difference in my weight, and seeing that progress keeps me motivated. TETSU has really helped me build a healthier routine that I can actually stick to. Definitely recommend it! 💪
Finally, one app instead of three
YRC999
I had one app for lifting, another for macros, and a Notes file for bodyweight I updated maybe once a month. Tetsu replaced all three.Two things it does that others don’t: the RPE grading actually feeds into your next weight suggestion instead of just sitting there as a number, and it flagged that my bench hadn’t moved in five weeks. I hadn’t noticed. That changed my whole block.Sensei is the first AI coach I’ve used that references my real numbers instead of generic advice. Being able to ask about my training through Claude is a nice bonus.
Helpful fitness coach
Simba u
Tetsu makes it easy to organize my workouts, track my macros, and stay consistent with my fitness goals. The AI coaching is helpful, personalized, and simple to follow. I really enjoy using this app and highly recommend it.
One of the Best AI Fitness Apps I’ve Tried!
Mounika karumuri
I’m really impressed with Tetsu! I usually don’t write reviews, but i genuinely wanted to share my experience with it.I really like how the app makes fitness and diet feel simple instead of confusing. Having an AI coach for both workouts and food in one place is very convenient , especially when you’re trying to stay consistent.The app is easy to use, well organized and actually motivates me to keep going.If you’re someone who wants to improve your fitness and eating habits but doesn’t know where to start, I definitely recommend giving Tetsu a try. Really happy with it so far!💪
The developer, Pavan Kumar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Contact Info
User Content
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Pavan Kumar
Size
85.3 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
