Comparison

Koar vs BodyLab

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Koar

Features
Read full description

KOAR is a strength coach that adapts to your body, not just your preferences. It reads your recovery and fatigue, detects stalls before you do, adjusts volume and intensity to how you're actually recovering, and for women, tunes intensity to your cycle phase. This isn't a workout logger. It's a training system. Free to start. Works on iPhone alone, better with Apple Watch and AirPods. Full gym to just bodyweight, KOAR builds around what you have. HANDS-FREE COACHING Put your AirPods in, put your phone down, lift. A warm studio-quality coach (Kira or Wes) narrates every set: exercise intros, rest countdowns, brace cues before heavy lifts, form reminders, a halfway checkpoint. Works offline, no setup. INTELLIGENT PROGRESSION Every set feeds a progression engine built on exercise science. KOAR estimates your 1RM with an Epley-Brzycki ensemble, detects stalls before you notice, and auto-adjusts volume and intensity. It adds weight when you're ready and calls a deload when you need one, using severity-weighted analysis of your last 4 sessions instead of waiting for you to fail twice. ADAPTS TO YOUR BODY A 5-second wellness check-in (energy, sleep, mood) calibrates every workout. KOAR reads HRV and nutrition from Apple Health to adjust volume and recovery, and uses menstrual cycle data to tune intensity by phase. APPLE WATCH COMPANION Live heart rate with zone coloring, rest timers based on heart-rate recovery (not just the clock), and rep detection tuned per exercise. If your Watch drops mid-workout, your iPhone is the source of truth, no data lost. TEMPO COACHING KOAR prescribes lifting tempo (eccentric, pause, concentric, pause) and guides each phase with haptic pulses on your wrist. COACHING INSIGHTS A Coach tab surfaces patterns you'd miss on your own: masked fatigue, volume response profiles, and wellness-performance correlations unique to you. PERIODIZATION THAT RUNS ITSELF Mesocycles with automatic phase progression, volume landmark tracking per muscle group (MEV/MAV/MRV), and goal-aware deloads. Hypertrophy deloads cut volume with lighter weights; strength deloads cut volume but keep full working weight for CNS readiness. BUILT FOR EVERY LEVEL Beginners get guided weight discovery with live cues. Intermediate lifters get periodized mesocycles with automatic deloads. Advanced lifters get RPE/RIR autoregulation and sex-based programming. EARN YOUR PROGRESS XP tied to training quality, not just showing up. 20 rank tiers, 18 badges for real milestones like 12-week streaks and pressing your body weight, and streak flames that evolve from Bronze to Obsidian over a year. AI PROGRAM BUILDER Describe your ideal training in plain English and KOAR builds a complete periodized weekly plan that respects evidence-based volume landmarks. STRAVA SYNC Completed workouts post to your Strava feed automatically as Weight Training activities. WIDGETS & LIVE ACTIVITIES Today's workout, weekly volume by muscle group, and your streak flame on the Home and Lock Screen. Live Activities keep your current set on Dynamic Island. PRIVACY FIRST No account required. Fully functional offline. No ads. Anonymous usage analytics only, opt-out in Settings. Voice coaching runs entirely on your device. Your data stays on device unless you turn on iCloud sync. SUBSCRIPTION KOAR's core is free: workout logging, RPE/RIR autoregulation, the progression engine, periodization, wellness check-ins, Apple Watch, Strava, and widgets. KOAR Pro unlocks the coaching layer: voice coaching, the AI program builder, Coaching Insights, heart-rate-based rest, body tracking, advanced set techniques, and unlimited routines. New users get a 2-week free Pro trial. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in App Store settings. Localized in 13 languages. Voice coaching in English only for now. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

BodyLab

Features
Read full description

Build your best body with BodyLab โ€” the science-backed gym app that acts like a personal coach. Designed for serious lifters, BodyLab creates personalized workout programs powered by AI and tracks your progress with precision. Simple: open BodyLab, follow your plan, build more muscle than ever. WHAT YOU GET AI-POWERED WORKOUT PLANS Personalized programs built around your goals, schedule, and available equipment. Whether you train at the gym, at home, or with calisthenics โ€” BodyLab adapts to you. SMART WORKOUT TRACKING Log sets, reps, and weights with a clean, intuitive interface. Less time tapping, more time lifting. AUTOMATIC PROGRESSIVE OVERLOAD BodyLab calculates the optimal weights for every set based on your history and recovery. Stop guessing. Start growing. 300+ EXERCISES WITH TECHNIQUE GUIDES Detailed instructions and cues for every movement. Train with perfect form, avoid injuries, and maximize muscle activation. BODY PROGRESS TRACKING Photos, measurements, and personalized charts to visualize your transformation week by week. ADVANCED METRICS Strength trends, volume tracking, and body stats โ€” everything you need to optimize every training block. What BodyLab users are saying: "Finally an app that actually thinks for me. Progressive overload on autopilot." - Alex M. "Best gym tracker I've ever used. Clean, fast, no BS." - Jordan T. "BodyLab replaced my personal trainer. Saves me hundreds every month." - Marcus R. Download BodyLab and start building. Subscription Information A BodyLab Pro subscription is required to unlock full access to all features and content. Payment is charged to your App Store account at purchase confirmation. The subscription automatically renews unless turned off in your App Store settings at least 24 hours before the current period ends. You can manage your subscription and turn off auto-renew in your App Store settings. TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://popenstudio.com/bodylab/privacy

Screenshots

Koar4 screens
BodyLab4 screens

Verdict

The call

The clearest difference is iOS requirement: BodyLab at 13.0 against Koar's 18. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Koar sells 3 in-app purchases, starting at $9.99 per month and BodyLab sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference ยท 5 level
Koar versus BodyLab: the parameters behind the verdict, then further details
ParameterKoarBodyLab
PriceFreeFree
Update frequencyEvery 5 daysโ€”
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch โ€” betteriPhone, iPod
Requires iOS1813.0 โ€” better
Further details โ€” not scored
Size150 MB111 MB
Age rating4+12+
DeveloperAric MalkaGregoire Girard

In-app purchases

3 purchases

Koar

Subscriptions2
  • Monthly14 Days trial$9.991 Month
  • Yearly14 Days trial$69.991 Year
One-time1
  • Lifetime Access$179.00
2 purchases

BodyLab

Subscriptions2
  • BodyLab Pro Monthly$9.991 Month
  • BodyLab Pro Annual$49.991 Year

Questions

Is Koar free?
Koar is free to download, with in-app purchases available.
Is BodyLab free?
BodyLab is free to download, with in-app purchases available.
Do Koar or BodyLab have ads?
Neither Koar nor BodyLab shows ads.

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