Stop guessing. Train with method.
An AI coach builds your training plan, tracks volume muscle by muscle and adapts every week to your real progress. What a great personal trainer would do, without the personal trainer bill.
👋 Personal dashboard: today, next step and progress
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Muscle groups with monitored volume
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Exercises in the library
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Automated periodization phases
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Languages & themes, data always exportable
AI analyzes your body
and auto-adjusts your training
Upload your photos and measurements. In seconds, the AI identifies which muscles are lagging and reprioritizes your next week of training.
Chest was below target. Added 2 extra sets on Thursday.
Current streak
14 days 🔥
AI Assessment
Based on photos + measurements from Apr 15
💡 What the AI will do
- Weak shoulders, prioritizing +3 sets over the next 2 weeks
- Back reached score 4, maintaining current volume
- Next cycle will begin intensity phase in 3 weeks
📐 Measurement progress
Chest
102cm
+1.5cm
Waist
81cm
-0.8cm
Arm
38cm
+0.5cm
Every Question That Stalls You in the Gym Has an Answer Here
"Am I training too much? Too little? Why did I stop growing?" Every feature below answers one of those with data, not guesswork.
A plan built just for you
Answer a few questions and the AI builds your complete training plan, the right exercises, in the right order, in the right amount for your body.
See demoKnow if you're training enough
After every session, the system shows if each muscle got the stimulus it needed, and warns you before you overtrain.
See demoAI analyzes your physique and adapts
Upload photos and measurements. The AI rates each muscle group and automatically shifts effort to where your body needs it most.
See demoInteractive muscle heatmap
See your body colored by actual weekly volume, green when on target, amber below MEV, red above MRV. One glance tells you everything.
See demoProgress that never stalls
The system tracks your evolution, calculates your 1RM per exercise, and suggests load increases exactly when your body is ready.
See demoTraining that adapts to your life
Missed a day? The AI redistributes what you missed across your remaining sessions. No result lost to unexpected events.
See demoAdvanced techniques built in
Drop Set, Super Set, Rest-Pause, Reverse Pyramid and Isometric Pause logged with proper volume counting.
See demoA method that respects your body
Training cycles organized to maximize gains and guarantee recovery. No overtraining, no lost weeks.
See demoNutrition aligned to your goal
Calories and protein calculated for your current training phase, whether building mass or cutting without losing muscle.
See demoGPS run tracker
Run tracking with GPS, distance, and pace. Cardio in the same app, no need to open another tracker.
See demoYour schedule, organized
See the full week, move sessions, sync with Google Calendar. Train offline; everything syncs back when you reconnect.
See demoBody proportion analysis
Reeves, McCallum and Casey Butt: the app computes the ideal proportions for your skeleton and shows exactly which muscles to prioritize.
See demoHIIT/Tabata circuits with timer
Tabata, EMOM, AMRAP and Pyramid ready to run, timer with vibration, wake-lock and shareable result card.
See demo30-second daily check-in
Weight, sleep and energy logged in three taps. The AI uses this data to adjust your plan even on rest days.
See demoVoice guide during workouts
Voice announcements for sets, rest and next exercise, ideal for training with headphones, no need to look at the screen.
See demoYour data, always yours
Unlimited history, CSV export anytime. App in 3 languages (EN/PT/ES) and 3 themes (dark/light/RPG).
See demoPersonal AI Chat
Talk directly with your AI coach, it knows your history, phase, and volume, and answers grounded in science.
See demoWhy People Who Always Train the Same Way Stop Growing
Your body adapts to anything you repeat. That's why the routine that grew you in year one stops working, and no amount of extra effort fixes it. The answer isn't training more: it's training in phases, each forcing a different adaptation before your body gets used to it.
That's exactly what block periodization does, the elite protocol for natural athletes. NattyCore applies it and the AI decides when to switch phases by reading your real progress. You don't need to understand the theory. Just train.
- No plateaus: each cycle has a different goal
- More results with less injury risk
- The AI decides when to advance, you just train
- Designed for naturals who don't use external resources
Build Phase
Higher volume, controlled pace. Muscles receive maximum stimulus for growth.
Intensity Phase
Fewer reps, heavier loads. Converts volume into strength and density.
Peak Phase
Time to harvest results. Reduced volume, maximum effort.
Recovery Week
The body rests to surpass itself. The AI schedules this automatically when it detects accumulated fatigue.
From Zero to a Complete Plan in Under 2 Minutes
Tell us who you are
Weight, height, experience, days per week and goal. No endless quiz, under 2 minutes.
The AI builds it all
Full plan on the spot: the right exercises, sets, loads and progression calculated for your body and your moment.
You just train
Log the workout, send photos and measurements. The AI watches, course-corrects and evolves the plan with you every week. So you don't have to think about it.
What's missing isn't effort. It's method.
You already work hard at the gym. What's missing is someone who looks at your numbers and tells you exactly what to change, and when. No magic formula, no 30-day promise: just the right method applied with consistency.
Genetics is the starting line. Consistency with method is what decides the finish.
We Don't Promise Magic. We Promise Method.
Volume that doesn't lie
Applied science, not estimates
Volume counted per muscle with the correct series factor, MEV/MRV band and RPE filter. No "roughly", the number that drives your training is exact.
AI with method, not guesses
The elite protocol for naturals
The AI doesn't improvise: it follows the block periodization protocol, reads your real progress and decides the phase. Every recommendation has a method behind it.
Adapts to real life
Automatic weekly replanning
Missed a workout? Volume is redistributed. Stalled? Progression adjusts. The plan moves with your real week, not a fixed PDF that goes stale by day 3.
A Personal Trainer Costs $200+/Month. This Costs Less than Lunch.
Periodized training plan, weekly adjustments and AI physique analysis. A coach's job, for a fraction of the price. 7-day guarantee: don't like it, we refund you.
Pro
$19.99
per month · cancel anytime
The complete product: the AI builds, measures and adjusts your training every week. This is what you came here for.
- AI-generated training macrocycle
- Adaptive weekly replanning
- Post-workout volume redistribution
- AI physique assessment + photos
- AI nutrition protocol
- Unlimited history + CSV export
Pro Monthly and Annual have exactly the same features — only the price changes.
Try Pro for 7 days🛡 Not for you within 7 days? Full refund, no questions
Pro · Annual
$191.90
per year · 2 months free
The same complete Pro, with 2 months a year on us. For those who've already decided to train for real.
- AI-generated training macrocycle
- Adaptive weekly replanning
- Post-workout volume redistribution
- AI physique assessment + photos
- AI nutrition protocol
- Unlimited history + CSV export
Pro Monthly and Annual have exactly the same features — only the price changes.
Subscribe annualFree
$0
no card
Just want to log workouts and see volume? Start here, without the AI that does the heavy lifting.
- Unlimited workout logging
- MEV/MRV volume dashboard
- Full exercise library
- Progression & 1RM charts
- Body metrics & progress photos
- Session history & recovery
Still Unsure? Straight Answers.
Train with science
Articles on block periodization, MEV/MRV, natural hypertrophy and load progression, no myths, grounded in published evidence.
How to Lose Weight with PCOS: Evidence-Based Training and Nutrition
PCOS can make fat loss feel inconsistent, but the research is clear: a sustained energy deficit, higher protein, and resistance training can improve body composition and metabolic health.
Read articleNatural Hypertrophy Myths: What the Evidence Actually Says
A lot of natural hypertrophy advice sounds convincing, but meta-analyses keep pointing to a smaller set of real drivers: volume, effort, recovery, and protein.
Read articleHow Much Volume for Hypertrophy? What the Evidence Actually Says
Weekly set volume is one of the strongest drivers of hypertrophy, but the dose-response is not linear forever. Here’s what the evidence says about the amount of training you actually need.
Read article
Your next workout could be the first one with direction.
It takes 2 minutes for the AI to build your plan. 7-day guarantee to decide if it's worth it, you risk nothing to find out.
Build my AI plan