Train for symmetry, not just size.
The first coach that adapts to your life—not the other way around.
Get personalized splits, science-based targets, and an adaptive AI coach that evolves as your body changes—built for precise results, zero generic templates.
Free to start · Plan in minutes
Built for those who'd rather train than guess
Meet Simmi
Your AI recomposition coach
She reads your logs, reviews your check-ins, catches stalls early, and proposes changes you can apply instantly. Operating within strict, research-backed science and expert-defined logic thresholds, every adjustment is mathematically locked to remain safe and effective. Ask about muscle focus, timed cuts, progressive overload, plateaus, and weight stalls — then apply or dismiss her recommendations with one tap.
Simmi
AI recomposition coach
I want to grow my glutes — what should we change in my program?
Your logs show strong lower-body volume, but hip thrust and RDL patterns are underrepresented. I prepared a glute-bias refresh: more hinge and abduction work on leg days while keeping your current split.
Recommended changes
- Muscle focus → Glutes
- Regenerate workout program
- Keep Upper/Lower · 4 days/week
Onboarding
Your starting point
Step 1 of 6 · Physical metrics
Sex (for BMR)
Age
28
Height
5'10"
Current weight
178 lb
Target weight
168 lb
Body-fat % · Optional
18%
Used to set protein from lean mass
Onboarding
Personalized Programming
Research-backed programming engineered for your goals.
Choose Full Body, Upper/Lower, or Push/Pull/Legs — matched to your schedule, with personalized nutrition targets and adjust as you do.
- Intuitive Workout Player: Track sets, reps, and weights with an automated rest timer while progress charts map your strength and performance
- Precision Macro Engine: Targets built from your data not just bodyweight — recalculating automatically as your composition changes
- Plateau & Stall Detection (Coach Exclusive): Flags exactly when progress stalls.
- Dynamic Split Regeneration (Coach Exclusive): Rebuilds your program when it's time to adapt.
Your goal, your math
Recomp, cut, bulk, or hypertrophy — programs and macros shaped by how you want to look.
Body Recomposition
Lose fat and build muscle at the same time with protein-forward macros and balanced training volume.
Lean Fat Loss
Higher protein targets and a controlled deficit sized to your timeline — protect muscle while you cut.
Hypertrophy
Volume-focused splits and progressive overload tracking to maximize muscle growth over time.
Muscle Gain
Surplus calories and structured programming for steady size gains without spinning your wheels.
Check-In
Week 8 progress
Jun 18 · 178 lb
Coach assessment
Shoulders and upper back are filling out compared to your Week 4 check-in. Waist line is tighter — stay the course on your current deficit.
Start
184 lb
Current
178 lb
Progress check-ins
Visual feedback that actually connects to your plan
Upload progress photos once a week, with your weight and date. Simmi compares check-ins over time, notes visible changes, and recommends adjustments when your trajectory or goal calls for it.
- Private Progress Tracking: Securely document your physical transformation with Simmi's visual assessments built on physique-coaching checkpoints.
- Flexible Weight Metrics: Log your weight from your daily dashboard or during your structured weekly check-ins.
- Timeline Visualizations: Review your physical evolution over time, organized by week and month to track composition shifts.
- Trend-Driven Comparisons: Compare baseline and follow-up data driven entirely by your deep historical trends - no guesses
Why Symmra
One app. Your whole recomposition stack.
Stop juggling a workout tracker, calorie app, spreadsheet, and random TikTok advice. Symmra connects training, nutrition, and coaching into one intelligent system.
Precision Baselines
Tailored calorie targets and lean-mass adjusted protein built entirely around your BMR, TDEE, and explicit timeline—never generic 2,000-calorie defaults.
Adaptive Momentum
Real-time weight-stall detection and lift plateau alerts trigger structured coach recommendations, keeping your physical progression moving forward.
Frictionless Nutrition
Seamless week-view food tracking with one-tap meal copying, custom food building, and recipe management.
Science-Backed Guardrails
Aggressive or unrealistic cut/bulk timelines trigger intelligent system warnings, enforcing proven coaching thresholds so you build or lean out sustainably.
Stories
Built for people done guessing
“I finally stopped guessing my macros. Symmra gave me numbers that actually made sense for my body, and the workouts fit my schedule.”
Stop guessing. Start executing.
Create your free account in minutes and get a personalized training and nutrition plan today.
Create your accountTrain from $12.99/mo · Coach from $18.99/mo — see pricing