Comparison

Repvex vs IronZenkai

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

Head to head
About

Repvex

This AI-powered fitness app acts as your personal strength trainer, optimizing workouts with real-time adjustments and detailed muscle fatigue tracking. Compete globally, race against your past performance, and visualize your progress with 3D heatmaps.

Highlights
  • AI-driven weight and rep adjustments
  • 3D muscle fatigue heatmaps
  • Intelligent progression logic
  • Automated workout generation
  • Global leaderboards and competitions
  • Ghost Runner personal best challenges
Features
Read full description

REPVEX App Store Description App Name: REPVEX - AI Workout Tracker Subtitle: Train Smarter. Lift Heavier. Promotional Text: The ultimate AI strength lab in your pocket. Real-time fatigue heatmaps, Ghost Runner competitions, and weight adjustments on the fly. Description Enter the Arena. Uncover your true strength potential with REPVEX—the ultimate AI-powered personal trainer, intelligent workout log, and competitive lifting platform. Forget spreadsheets and basic trackers. REPVEX evolves with every rep you lift, learning your body to optimize your performance. INTELLIGENT AI COACH Your personal strength architect. Auto-Regulation: The AI dynamically adjusts your weights and reps mid-workout based on how you performed in previous sets. Form Analytics: Hit plateau-shattering PRs with intelligent progression logic tailored explicitly to your goals (hypertrophy, strength, or endurance). Workout Generation: Not sure what to do today? Let the AI instantly build a hyper-optimized session based on your fatigue levels and available equipment. 3D MUSCLE FATIGUE HEATMAPS Stop guessing, start recovering. Anatomy Tracking: Interact with a full 3D human anatomy model that tracks precisely which muscles you've targeted this week. Real-time Fatigue: Muscles glow red when fatigued and turn green as they recover, ensuring you never overtrain or underwork a muscle group again. Volume Metrics: Dial in your training splits by visualizing precise tonnage and set volume per muscle. THE ARENA & GHOST RUNNER The world is your gym. Who are you competing against? Global Leaderboards: Fight for your position and level up your rank in the global lifting Arena. Ghost Runner: Race against the historic performance of your past self. Can you beat the "you" from 3 months ago on the Bench Press? Social Feed: Share epic PR celebrations directly to your integrated social feed, and hype up your squad as they crush their goals. PREMIUM SUBSCRIPTIONS (REPVEX PRO) Unlock the full power of REPVEX with a Pro subscription. Subscription Tiers Available: Starter ($4.99/month): Limited entry-level access to Surge features. Surge ($39.99/year): Unlimited AI Coaching, Full 3D Muscle Fatigue Heatmaps, and Advanced Progress Analytics. Apex ($79.99/year): All Surge features + Exclusive "God-Tier" Arena Badges, unlimited Ghost Runner races, and priority elite support. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://repvex.app/privacy Terms of Use (EULA): https://repvex.app/terms

About

IronZenkai

This app provides personalized strength training programs and macro tracking. It features an AI coach for accountability and progress monitoring, helping users achieve their fitness goals with guided workouts and nutrition planning.

Highlights
  • Personalized periodized training programs
  • Guided workouts with rest timers
  • Macro and calorie target tracking
  • AI accountability coach
  • Progress photo timeline
  • Home Screen widgets
Features
Read full description

Train with real science. Eat for your goals. Track it all in one app. IronZenkai is a workout tracker and gym log built on real training science — not just a set counter — with calorie and macro tracking built in. Plan periodized programs, log every set, snap a photo of your meals, and let your AI coach tie it all together. No second app. No account needed to start. TRAIN SMARTER - Auto-built mesocycle programs (full-body, upper/lower, push-pull-legs and more) matched to your goal, experience, and equipment - Progressive overload that adapts: smart weight, set, and rep suggestions from your last workouts - Fast set logging with RIR, a built-in rest timer, and pre-workout check-ins that tune each session to your energy - Automatic deloads and a guided "plan your next block" flow — never guess what's next - Full exercise library with form guidance and one-tap swaps EAT FOR YOUR GOALS - Photo food logging: snap your plate to get calories and macros, analyzed on-device on supported iPhones - Barcode scanner and a searchable food database - Adaptive TDEE that learns from your weight trend and adjusts your daily targets - Build meals and daily plans that hit your protein, carbs, and fat - Real-time calorie pacing: always know what's left and what to eat MEET ZEN, YOUR COACH - An AI coach that sees your training, nutrition, and weight together - Ask anything: why the scale stalled, what to eat with calories left, how to train around a sore joint - Answers grounded in your real data — not generic advice SEE YOUR PROGRESS - Progress photo timeline with start-to-now comparisons - Weight and strength charts, streaks, and weekly summaries - Milestone share cards and home-screen widgets BUILT RIGHT - Start instantly — no sign-up required - Works offline and syncs when you're back online - Your data stays yours MEMBERSHIP IronZenkai is free to use. An optional membership — a one-time Lifetime purchase or an auto-renewing subscription — unlocks premium coaching and cloud features. Price and length are shown in the app before you buy. Subscriptions auto-renew unless turned off at least 24 hours before the period ends; manage or cancel anytime in your Apple ID settings. Terms of Use: https://ironzenkai.com/terms Privacy Policy: https://ironzenkai.com/privacy Support: support@ironzenkai.com

Screenshots

Repvex4 screens
IronZenkai4 screens

Verdict

The call

The clearest difference is update cadence: IronZenkai at every 5 days against Repvex's every 2 weeks. IronZenkai also leads on iOS requirement (13.0 vs 15.1). Repvex's advantage is ratings volume (9 vs 1). On price, rating, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Repvex sells 4 in-app purchases, starting at $6.99 per month and IronZenkai sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Repvex against 5.0 for IronZenkai. That said, the two scores are not equally well evidenced: Repvex has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Repvex ships an update every 2 weeks, IronZenkai every 5 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
Repvex versus IronZenkai: the parameters behind the verdict, then further details
ParameterRepvexIronZenkai
PriceFreeFree
Rating5.0 (9 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.113.0 — better
Further details — not scored
Size81 MB163 MB
Age rating12+12+
DeveloperOlalekan FamodimuMelovin Pedida

Customer experience

Repvex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

IronZenkai

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Repvex

Subscriptions4
  • REPVEX Starter$6.991 Month
  • REPVEX Apex$12.991 Month
  • REPVEX Surge1 Year trial$49.991 Year
Show 1 more
  • REPVEX Apex$89.991 Year
3 purchases

IronZenkai

Subscriptions2
  • IronZenkai Premium$1.991 Month
  • IronZenkai Premium (Yearly)$19.991 Year
One-time1
  • IronZenkai Lifetime$9.99

Questions

Is Repvex free?
Repvex is free to download, with in-app purchases available.
Is IronZenkai free?
IronZenkai is free to download, with in-app purchases available.
Which has better reviews, Repvex or IronZenkai?
Repvex and IronZenkai are both rated 5.0 out of 5 on the App Store, from 9 and 1 ratings respectively.
Do Repvex or IronZenkai have ads?
Neither Repvex nor IronZenkai shows ads.
Which is updated more often, Repvex or IronZenkai?
Repvex ships an update every 2 weeks, and IronZenkai every 5 days. Most recently, Repvex was updated on October 5, 2026 and IronZenkai on October 18, 2026.

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