Comparison

Workout Twin vs Axiom

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

Head to head
About

Workout Twin

This app helps you achieve fitness goals like fat burning and muscle building with expert-designed workouts and AI coaching. Track progress with detailed graphs, customize plans, and securely store your workout history. Share your achievements with friends and family.

Highlights
  • Expert-designed workouts
  • Over 1,300 exercises with animations
  • Comprehensive progress tracking
  • Customizable workout plans
  • AI fitness coach guidance
  • Secure history storage
  • Workout sharing
Features
Read full description

Achieve your fitness goals with Workout Twin, your ultimate workout companion. Whether you want to burn fat, build muscle, or just stay in shape, Workout Twin has you covered with features for every fitness level. EXPERT-DESIGNED WORKOUTS Discover targeted workouts for abs, chest, glutes and more, crafted by top trainers. Choose from over 500 exercises with animations and step-by-step instructions for perfect form, available even when you're offline. TRAIN FROM YOUR LOCK SCREEN Your workout follows you onto the lock screen and Dynamic Island. See your current exercise, sets done and overall progress, follow your rest countdown, and log a set without unlocking your phone. COMPREHENSIVE TRACKING Record every session automatically, track your progress and visualize your journey. Interactive graphs help you monitor weight, muscle measurements, bicep size, waist circumference and more. CUSTOMIZABLE PLANS Easily adjust your workout routines to fit your goals, whether that's bodybuilding, strength training or fat-burning home workouts. AI-POWERED TRAINING Train smarter with your AI fitness coach, guiding you through every step for effective workouts and consistent progress. SECURE HISTORY STORAGE Your entire workout history is saved on your device and in our secure database, so you'll never lose your progress. SHARE YOUR SUCCESS Motivate friends and family by sharing your workouts and achievements directly from the app. AVAILABLE IN YOUR LANGUAGE Use Workout Twin in English, Spanish, Brazilian Portuguese or German. Download Workout Twin today and start your journey towards a healthier, stronger you! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Axiom

This app uses AI to diagnose your strength training weaknesses and provides personalized workout and nutrition plans. It tracks your progress and offers detailed insights into your performance, helping you break through plateaus.

Highlights
  • AI-powered lift diagnostics
  • Personalized AI coaching
  • Customizable training programs
  • AI-generated nutrition plans
  • Workout logging and tracking
  • Wellness and recovery monitoring
  • Strength profile analysis
Features
Read full description

AXIOM — AI STRENGTH TRAINING PLATFORM & LIFT DIAGNOSTIC Most lifters train for months without knowing which muscle is actually the bottleneck in their bench press, squat, or deadlift. Axiom identifies it in minutes — using your real working weights, not a quiz. HOW THE DIAGNOSTIC WORKS Enter your working weights and reps. Axiom calculates your estimated 1RM across all major lifts and scores five muscle-group indices: Quad, Posterior Chain, Back Tension, Triceps, and Shoulder. Then it asks you targeted questions about your sticking points, bar path, and fatigue patterns — and pinpoints your exact limiting factor with a confidence-ranked hypothesis. WHAT YOU GET LIFT DIAGNOSTIC AI-powered weakness identification for bench press, squat, deadlift, and 6 more lifts — including Olympic movements. Free to run. No guesswork. AI COACH ANAKIN Personalized coaching that knows your full training history, strength profile, wellness logs, and nutrition. Every answer is specific to you — not generic textbook advice. Available 24/7. CUSTOM TRAINING PROGRAM Fully periodized 2-16 week programs built around your diagnosed weakness. Strength, hypertrophy, athletic, or mixed — structured for your schedule and equipment. NUTRITION PLANNING AI-generated meal plans matched to your training phase, macro targets, and dietary preferences. Log a meal by describing it in plain English and get macros in seconds. WORKOUT LOGGING Log sets, reps, weight, and RPE for 80+ exercises with autocomplete. Every entry feeds your strength model and sharpens future coaching. WELLNESS TRACKING Daily mood, energy, sleep, and stress check-ins. Poor recovery automatically reduces volume and intensity recommendations for that day. STRENGTH PROFILE Watch your five muscle-group index scores improve over time as the program works. See exactly which weaknesses have been addressed and which still need focus. BODY WEIGHT TRACKER Log daily weight and Axiom projects your trajectory to your goal date — based on your actual caloric trend, not a generic formula. FRIENDS & 1RM LEADERBOARD Add friends, compare Epley-estimated 1RMs per lift, and see exactly where you rank. Strength earned — not self-reported. SUPPORTED LIFTS Flat Bench Press · Incline Bench Press · Barbell Back Squat · Barbell Front Squat · Deadlift · Clean & Jerk · Snatch · Power Clean · Hang Clean FREE TO START Run your first lift diagnostic free — no credit card required. Identify your exact weakness and see your first accessory prescription in minutes. PRO FEATURES Upgrade for unlimited diagnostics, full AI coaching, personalized program generation, full nutrition planning, social features, and priority support. BACKED BY REAL SCIENCE Built on NASM, ISSA, and ACE certification frameworks alongside 7,000+ pages of peer-reviewed sports science — applied specifically to your training numbers, not general population averages. Stop guessing why your lifts are stuck. Start your free diagnostic today. Terms of Use: https://axiomtraining.io/terms

Screenshots

Workout Twin4 screens
Axiom4 screens

Verdict

The call

Workout Twin and Axiom are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Workout Twin sells 2 in-app purchases, starting at $2.99 per month and Axiom sells 1 in-app purchase, starting at $9.99 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 Workout Twin against 5.0 for Axiom. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Workout Twin ships an update every 2 weeks, Axiom every 9 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

ScorecardNo meaningful differences
Workout Twin versus Axiom: the parameters behind the verdict, then further details
ParameterWorkout TwinAxiom
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 2 weeksEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size115 MB74 MB
Age rating4+12+
DeveloperMuhammad Shahan AhmedAnupta Islam

Customer experience

Workout Twin

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Axiom

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

In-app purchases

2 purchases

Workout Twin

Subscriptions2
  • All Access$2.991 Month
  • All Access Yearly$19.991 Year
1 purchases

Axiom

Subscriptions1
  • Axiom Pro Tier1 Month trial$9.991 Month

Questions

Is Workout Twin free?
Workout Twin is free to download, with in-app purchases available.
Is Axiom free?
Axiom is free to download, with in-app purchases available.
Which has better reviews, Workout Twin or Axiom?
Workout Twin and Axiom are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Workout Twin or Axiom have ads?
Neither Workout Twin nor Axiom shows ads.
Which is updated more often, Workout Twin or Axiom?
Workout Twin ships an update every 2 weeks, and Axiom every 9 days. Most recently, Workout Twin was updated on October 24, 2026 and Axiom on October 7, 2026.

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