Your personalAI strength & running coach
The exact weights, sets and reps for your body — recalculated every session as you get stronger. Plus GPS run tracking with pace, heart rate and 4×4 intervals.
Free beta via Apple TestFlight · install takes about a minute
A peek at the app
Your Styrki Score, instant personal bests, live runs and the leaderboard — the moments you'll actually see.
Your adaptive engine
Learns your body, recalibrates every session
Training that adapts to you, not the other way around
Styrki learns how your body responds — your recovery speed, your strength curves, your volume tolerance — and recalculates every weight, set, and rep to match. No fixed templates, no guesswork.
- An adaptive engine that calibrates to your own training data
- Automatic personal-best detection across 20+ record types
- Fatigue-aware programming that backs off when your body needs it
- Strength, GPS running, and Apple Watch — all in one app
Get started in 3 simple steps
From download to your first AI-generated workout in under 2 minutes.
Download the app
Download Styrki on your iPhone via TestFlight and create your account in seconds.
Set your goals & equipment
Tell us your training goal, experience level, and available equipment.
Train lifts & runs
Get personalized workouts with calculated weights, sets and reps — plus GPS-tracked runs with pace, heart rate and 4×4 intervals.
Built for athletes and beginners
Whether you train for strength, hypertrophy, or general fitness — Styrki adapts.
Intelligent Workout Generation
VOL/MED/INT day types, %1RM intensity targets, and fatigue-based adjustments. Level-based periodization, annual volume tracking, and adaptive learning that personalizes every constant to your body.
AI Workout Generation
Elite Strength Architecture adapts volume and intensity to your experience level — from beginner to elite.
- Level-based volume periodization
- Frequency-adaptive session scaling
- Volume/Medium/Intensity day rotation
- Considers muscle recovery status
Adaptive Learning Engine
Every training constant is personalized to your body. The system learns from your data and gets smarter with every session.
- Personal fatigue recovery rates
- Individual volume tolerance calibration
- Learned deload timing per athlete
- Lift-specific strength curve modeling
Precision Intensity Calculation
Lift-specific formulas calibrated to your personal strength curves — not generic population averages.
- Per-movement strength-curve calibration
- Annual volume tracking with level-based targets
- Rolling 12-month progress monitoring
- Home gym equipment configuration
5 Training Goals
Choose your focus — the AI adapts everything to match
Multi-Week Programs
Structured periodized training
- 4, 8, 12, or 16-week programs
- Periodized phases: Base → Building → Peaking
- Built-in deload weeks for recovery
- Auto, Accumulation, Recovery & Peaking modes
Flexible Durations
Workouts that fit your schedule
- Quick sessions: 20-40 minutes
- Normal sessions: 40-60 minutes
- Long sessions: 60-90 minutes
- AI adapts exercises & volume to your time
Advanced Personal Best System
Four tier categories (All-Time, Year Best, Current 12-month, Relative Strength), plus rep PBs, set-volume PBs, and estimated 1RM PBs. We track your best at every rep count — your 1RM, 5RM, and 10RM all live alongside each other instead of one record overwriting the next.
4 PB Categories
- Track All-Time, Year Best (UTC-anchored), Current 12-month, & Relative Strength
- Tracks your best at every rep count — 1RM, 5RM, 10RM all live alongside each other
- Stack tier badges + reps PB + set-volume PB + est 1RM PB on one lift
- First Record detection with special celebration
- History preservation — we never delete your records
Specialized Records
- Weight, Reps, Distance, Time & Height
- Smart bodyweight exercise tracking with effective weight calculation
- Estimated 1RM & Rep Max insights
Recovery & Insights
- Visual muscle recovery indicators
- RPE & Fatigue tracking
- Prevent overtraining with smart alerts
GPS runs with real sport science
Lace up and hit start. Styrki maps your route, tracks pace and heart rate live, and breaks every run down with real sport science — aerobic decoupling, running efficiency and grade-adjusted pace — then folds your aerobic fitness into your Styrki Score.
- GPS route, per-km splits & grade-adjusted pace
- Aerobic decoupling, efficiency & training load
- Live pace on your Lock Screen & Dynamic Island
- Any Bluetooth heart-rate strap — Garmin, Polar, Wahoo & more
- Guided 4×4 intervals & interval VO₂
- Running records, standards & streaks to chase
Built for the Gym Floor
Live PB detection with stacked badges, attempt nudges before you finish a set, celebrations when you hit a PB — and a dedicated Max Test for the day you test your one-rep max.
Test your one-rep max, meet-style
Pick your lifts and Styrki runs a proper max-out: a warm-up ramp to your opener, then progressive singles with your coach calling every attempt out loud — bumping the next one when a lift flies, easing back when it grinds. Hit a top single and it banks a real PB.
Dynamic Rest Timer
- AI-recommended rest times per exercise
- Sound notification when rest is complete
- +30s button for extra rest, skip when ready
Quick Logging
- Auto-generated warm-up progressions
- Pre-filled weights based on your PBs
- One-tap set completion with instant PB detection
Every rep earns something
Styrki turns your training into a game worth playing — one Player Level across lifts and runs, named ranks to climb, and rarity-colored crests to show off.
Player Level & XP
One level across strength and running, earning XP for every PB and milestone you hit.
Lifter & Runner ranks
Climb named ranks — Untrained to World Class for lifting, First-Timer to Ultra-Runner for running — earned by mastery, per lift and run family.
Rarity crests
Faceted achievement crests from Common to Mythic, ready to show off on your profile.
Skill ladders
Per-lift and per-run ladders with the next tier's target always in view to chase.
Works with your Watch & Apple Health
Styrki reads and writes Apple Health, so your whole training and recovery picture lives in one place — no double entry.
Apple Watch
Start a run from your wrist and stream live heart rate straight into your session.
Two-way HealthKit sync
Runs sync both ways, and your strength workouts write straight to Apple Health.
Vitals feed your Score
Resting HR, HRV, sleep, VO₂max and body weight flow into your Styrki Score.
Not on an Apple Watch?
Connect Strava, Polar or Oura to bring your runs, sleep and HRV into Styrki — no Apple Watch needed.
One score for everything you train
Your Styrki Score rolls activity, strength, aerobic fitness, recovery and wellness into one number you can watch climb — and there's a whole toolkit around it.
Achievements & goals
Milestones and fair, gender-specific targets.
Community & rivals
Follow athletes, go head-to-head, join challenges & climb leaderboards.
Advanced analytics
PB timeline, volume trends and 4-week projections.
Muscle recovery
Per-muscle readiness so you never overtrain.
Body measurements
Track composition and progress over time.
Share your PBs
Post workout and PB cards anyone can open.
Popular exercises
Browse 600+ exercises with video demos and muscle targeting. Start with the most used by our community.
Start training today. Add the AI when you want it.
Log every workout, PB and run at no cost — and try AI coaching free with your first few generated workouts. Go unlimited with a subscription whenever you're ready; cancel anytime. Annual plans start with a 7-day free trial.
Starter
Everything you need to train and track — free, forever.
No cost
- Unlimited manual workout logging
- Full PB tracking — 20+ record types
- GPS runs, cardio & heart rate
- Styrki Score — your progress, scored free forever
- Community feed & leaderboards
- 3 AI workouts + 5 coach messages to try
Styrki AI
Unlimited AI coaching that adapts to your body.
$20.83/mo
7-day free trial · billed annually ($249.99) · or $29.99/mo · save 30%
- Everything in Starter
- Unlimited AI workout generation
- Unlimited coach chat
- Adaptive learning tuned to your training
- AI program adherence & periodization
- AI avatar & video coaching
Styrki AI Voice
Your coach, talking you through every set.
$41.67/mo
7-day free trial · billed annually ($499.99) · or $59.99/mo · save 30%
- Everything in Styrki AI
- Live voice coach during workouts
- Spoken cues, RPE prompts & form tips
- Hands-free, eyes-on-the-bar coaching
Annual plans include a 7-day free trial · Prices in USD, shown in your local currency in the app · Billed through the App Store · Cancel anytime
Frequently Asked Questions
Everything you need to know about Styrki.
Still have questions?
Visit Help CenterReady to Train Smarter?
AI-powered coaching that helps you break through plateaus and hit new PBs.