zRep vs GymHack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
zRep
Log your gym workouts, track your lifts, and organize your training sessions. This app offers live workout logging, a comprehensive exercise library, and progress tracking. An optional subscription unlocks advanced features like unlimited templates and partner training.
- Live workout logging with detailed metrics
- Extensive exercise library with search
- Progress charts and personal records
- Apple Watch companion app
- Workout template saving
- Partner training features (Pro)
- Body measurements tracking (Pro)
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EARN YOUR REPS zRep is a free strength training app for the gym floor—fast logging, Community, and an AI coach that helps with your training and nutrition. No ads. No subscription required. TOTALLY FREE • Unlimited workout logging (sets, reps, weight, RPE) • Unlimited templates & full history • Rest timer · exercise library · plate calculator • Apple Watch companion (mirror + remote—phone is source of truth) • Cloud sync when you sign in · Apple Health • Community, AI coach, and nutrition—included, not locked behind Pro COMMUNITY Create a free account, follow lifters by code, and see finished sessions in the feed. Like and comment. Mutual follows unlock Compare PRs and nudges so you can stay accountable without a group chat. AI COACH & NUTRITION Build a coach plan around your goal (build muscle, get stronger, lose fat, and more). Chat with zRep AI to adjust for the equipment you have and swap exercises you can actually do. Pair training with a nutrition plan in the same app. WORKOUT LOGGING Log between sets without fighting the UI. Track weight, reps, RPE, and notes. Rest timer keeps you on pace. Finish a session and see what you earned. TEMPLATES & PROGRESS Save routines you repeat. Start from a template and train. History, charts, and milestones so you know if the numbers are climbing. APPLE WATCH Glance at the live session, start rest, pause, or finish from your wrist—built as a gym-floor remote, not a separate logging app. WHO IT’S FOR Strength lifters and gym-goers who want a fast log plus Community and coaching tools—without paying to unlock the basics. Privacy, support, and terms: https://zrep.kz-minds.com
GymHack
This app helps you track your weightlifting workouts and provides AI-driven insights into your recovery and readiness. It allows for extensive customization of exercises and gym equipment, with a focus on personalized training analysis. Features include progress charts, periodization, and readiness checks.
- AI-driven workout analysis
- Customizable exercises and machines
- Recovery and readiness tracking
- Personalized training load insights
- Progress charts and PR history
- Weekly plan generation
- Apple Watch integration
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TRAINING THAT KNOWS WHEN YOU'RE COOKED A workout log records what you did. GymHack reads what it's doing to you. NO ACCOUNT. EVER. Open the app and train. No email, no signup wall, no "create an account to continue." Your data lives on your device, backed up to your own iCloud. BUILT FOR YOUR GYM, NOT A GENERIC ONE Every gym is different. Yours has that one plate-loaded machine nobody else stocks, or a cable setup with its own quirks. GymHack lets you add your own exercises and your own machines — name them, photograph them, tell the app what they count as, and train with them like any built-in movement. And your AI Coach — a PRO feature, currently in beta — knows about them. Ask it to build a session around what your gym actually has, and it programs with your custom machines and exercises — not a stock library that pretends every gym is identical. FREE, AND ACTUALLY FREE • Unlimited workouts, sets, supersets and rest timers • 430+ exercises with images, cues and muscle maps • Per-set RPE, drop sets, warm-up sets, failure sets • Add 5 custom exercises and 2 custom machines • Build weekly plans, or generate one automatically • Periodization phases that coach you mid-workout • Progress charts for every exercise — volume, max weight, estimated 1RM, PR history • Guided 1RM testing • Cardio and HIIT — add a smartwatch for 5-zone heart-rate training • A 53-badge collection to chase • Pre-workout readiness check before every session • Free iCloud backup of your workout history and body stats ON YOUR WRIST — THE WHOLE APP, FREE Run entire workouts from your wrist. Heart rate, calories, Activity rings, PR haptics, complications, Siri shortcuts, offline queue, Handoff to iPhone. No subscription. PRO — SEE WHAT TRAINING IS DOING TO YOU Logging tells you what you lifted. PRO tells you what it cost. • Your whole gym — up to 200 custom exercises and 50 custom machines • AI Coach that programs around your equipment and your history — runs privately on iPhones with Apple Intelligence (beta) • Recovery and readiness — which muscles are ready, which need rest • Training load — acute, cumulative and systemic fatigue, including CNS overreaching • Muscle profile — 16 muscles tracked with personalized volume targets • Strength progress — every muscle, over time, with full analysis • Left/right asymmetry detection • Weight, body-fat, calorie and heart-rate trends with plateau detection • Nutrition targets that flex on training vs rest days Try PRO free for 14 days. Cancel anytime. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gymhack.ai/privacy
Screenshots
Verdict
The clearest difference is rating: GymHack at 5.0 against zRep's 4.7. zRep's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. zRep sells 3 in-app purchases, starting at $4.99 per month and GymHack sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
GymHack holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
zRep ships an update every 5 days, GymHack every 3 weeks. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.
| Parameter | zRep | GymHack |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 20 MB | 227 MB |
| Age rating | 4+ | 4+ |
| Developer | Seifeldin Zook | Prioton LLC |
Customer experience
zRep
GymHack
In-app purchases
zRep
- zRep Pro$4.991 Month
- zRep Pro$29.991 Year
- zRep Pro — Lifetime$79.99
GymHack
- Monthly14 Days trial$9.991 Month
- Yearly14 Days trial$69.991 Year









