Comparison

GymBook vs THE SYSTEM

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

Head to head
About

GymBook

Log workouts, track body measurements, and visualize your fitness progress over time. This app focuses on monitoring your efforts and celebrating achievements to keep you motivated and consistent.

Highlights
  • Weekly workout tracking (weights, reps, sets)
  • Body measurements and progress photos
  • Progress visualization with charts and lists
  • Data stays on device for privacy
  • Simple, distraction-free interface
Features
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GymBook is a simple workout tracker for people who already know how they want to train. If you already have a training program, know your exercises, and want a clean way to track progress, GymBook is built for you. Most fitness apps are overloaded with features you do not need. GymBook keeps things simple and focused: - Log your workouts quickly - Track weights, reps, and sets - Follow your own training program - Monitor body measurements over time - See your progress clearly GymBook is made for lifters who do not want unnecessary exercise videos, confusing AI-generated plans, or bloated interfaces. Use GymBook to: - Build and organize your workout program - Track exercise performance - Record training data without distractions - Monitor strength progress over time - Log body measurements in one place - Stay consistent with a clean, functional experience Whether your goal is building muscle, getting stronger, or simply training consistently, GymBook helps you stay focused on what matters. Simple. Functional. Useful.

About

THE SYSTEM

Features
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The weight you lift becomes a letter. Not fake XP โ€” the actual iron on the bar. Log one set. The System estimates your one-rep max, compares it to strength standards calibrated to your sex, age and bodyweight, and gives six body regions a letter: E, D, C, B, A, S, National. Your first rank arrives in your first session โ€” free. Other apps award invented XP and badges; raw logs give numbers without meaning. Is a 90 kg bench good? The System shows your rank and what to do next. Squat, bench and deadlift thresholds come from OpenPowerlifting's open competition data. Shoulder, arm and core thresholds rest on published estimates, to be recalibrated with beta data. We do not hide which is which. YOUR WEAKEST LINK COUNTS DOUBLE Your overall Hunter Rank averages all six regions, and an unmeasured region counts as zero: a weak lift can only raise your letter, never lower it. It also names the cause: no main lift logged, untrained, stalled or behind. THE AWAKENING โ€” IN FRONT OF THE PAYWALL Three questions and your best recent lifts. The System calibrates and reveals your first ranks. Skip any lift you have not measured; an unmeasured region stays unranked, never guessed. WHAT COMES NEXT One question answered: what must you do to reach the next letter? Target 1RM, how many weeks, this week's working set โ€” from your measurements, not a stock template. BUILT FOR THE GYM FLOOR Supersets, drop sets, timed holds. RPE from 6 to 10 in half-point steps. A live 1RM estimate that updates as you type. A plate calculator showing what to load. And a rest timer that survives backgrounding, then vibrates and chimes (both optional). APPLE HEALTH Bodyweight is the denominator of every rank, and a typed weight goes stale. Read the latest body mass from Health with one tap; the app reads no other Health data and never writes to Health. If signed in, the selected profile weight is included in cloud backup. Old or unusual readings are skipped or confirmed with you. YOUR STREAK DOES NOT PUNISH YOU The streak is weekly, not daily: a rest day is physiologically correct, not punishable. Freezes are earned by training, never bought. A broken streak is never shown back. YOUR RANK CANNOT BE BOUGHT No payment, at any price, will move a single letter. Not a promise โ€” architecture: the ranking engine cannot see your subscription status. You cannot enter coefficients for your own movements either, so rank cannot be faked, not just bought. FREE FOREVER The Awakening and your first rank reveal. Unlimited logging, live 1RM, plate calculator. Complete history, never capped. All six region ranks. Every rank-up ceremony. Your quest and this week's target. The weekly streak. Rank card sharing. CSV export. Cloud backup. An offline coach for asking about your data. WHAT SYSTEM ASCENDANT ADDS Recovery protocol (weekly plan for your weakest region) ยท periodized quest chains ยท rank projection (weeks to the next letter) ยท the weekly report ยท deep analysis (regional growth rates and balance) ยท measurement trends ยท auto-progression ยท HUD themes. Your first 7 days are a full ASCENDANT trial โ€” no payment method and no paid subscription starts. Then you return to the free tier; nothing is deleted. Choose a monthly or annual auto-renewing subscription, or a one-time lifetime purchase. Apple shows the price and renewal terms before purchase. You can cancel any time in your Apple ID subscription settings. YOUR DATA An account is optional. Log workouts offline and use your ranks without signing in; create an account only for cloud backup across devices. No ads, no data selling. Export your log as CSV, delete your account from inside the app. Nutrition targets are informational, not medical advice. The coach is rule-based and runs on your device; the AI coach is not enabled in this build. Terms of Use: https://kprens.github.io/the-system-legal/terms.html Privacy Policy: https://kprens.github.io/the-system-legal/privacy.html

Screenshots

GymBook4 screens
THE SYSTEM4 screens

Verdict

The call

The clearest difference is in-app purchases: GymBook at none against THE SYSTEM's 3. GymBook also leads on update cadence (every 2 weeks vs every 6 weeks). On price, ads, device support and iOS requirement 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. THE SYSTEM sells 3 in-app purchases, starting at $9.99 per month. GymBook asks for nothing beyond the download.

UpkeepUpdate frequency

GymBook ships an update every 2 weeks, THE SYSTEM every 6 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard2 real differences ยท 6 level
GymBook versus THE SYSTEM: the parameters behind the verdict, then further details
ParameterGymBookTHE SYSTEM
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 2 weeks โ€” betterEvery 6 weeks
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.616.4 โ€” better
Further details โ€” not scored
Size4 MB56 MB
Age rating4+4+
DeveloperMetehan CANPOLATAHMET SELIM TEKIZ

In-app purchases

None

GymBook

No in-app purchases

3 purchases

THE SYSTEM

Subscriptions2
  • SYSTEM ASCENDANT โ€” Monthly$9.991 Month
  • SYSTEM ASCENDANT โ€” Yearly$39.991 Year
One-time1
  • SYSTEM ASCENDANT โ€” Lifetime$129.99

Questions

Is GymBook free?
GymBook is free to download, with no in-app purchases.
Is THE SYSTEM free?
THE SYSTEM is free to download, with in-app purchases available.
Do GymBook or THE SYSTEM have ads?
Neither GymBook nor THE SYSTEM shows ads.
Which is updated more often, GymBook or THE SYSTEM?
GymBook ships an update every 2 weeks, and THE SYSTEM every 6 weeks. Most recently, GymBook was updated on October 5, 2026 and THE SYSTEM on October 7, 2026.

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