Comparison

RepX vs Simple AI Workout Tracker

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

Head to head
About

RepX

Log workouts, track progress with detailed graphs, and automatically detect personal records. Generate custom workouts, plan your schedule, and visualize body transformations with progress photos. Offers a free tier with limited logging and a premium subscription for unlimited access.

Highlights
  • Effortless workout logging (reps, weight, duration, RPE)
  • Extensive exercise library with custom options
  • Apple Watch integration for wrist logging
  • Powerful progress graphs and automatic PR tracking
  • Smart workout generator and custom builder
  • Workout calendar and scheduling
  • Progress photo and bodyweight tracking
Features
Read full description

Take your training to the next level with RepX, the ultimate workout partner designed to help you get stronger, faster. Stop tracking in notebooks and spreadsheets. RepX is built for performance, giving you the tools to plan, track, and analyze every part of your fitness journey. YOUR ULTIMATE WORKOUT PARTNER - Effortless Workout Logging: Quickly track every detail: reps, weight, duration, RPE, and rest timers with an interface that keeps you focused on your lift. - Limitless Exercise Library: Start immediately with over 1500+ exercises, or create your own custom movements to fit your unique training style. - Apple Watch Integration: Log sets and track your entire workout directly from your wrist for maximum convenience. SEE YOUR PROGRESS, VISUALIZED - Powerful Progress Graphs: Watch your strength skyrocket with beautiful, easy-to-read graphs for any exercise, muscle group, or time span. - Automatic PR Tracking: We automatically detect and log every new personal record you hit. You break it, we track it. - Session Comparison: Compare any two workout sessions for an exercise to see exactly how you're improving over time. BUILD SMARTER WORKOUTS, INSTANTLY - Workout Generator: Tell the app your target muscles and available equipment, and our smart algorithm will build a complete workout for you. - Custom Workout Builder: Easily craft your own perfect routines from scratch. - Smart Warmup Calculator: Get perfectly calculated warmup sets to prepare your body for peak performance. - Exercise Substitute: Instantly find the perfect alternative for any exercise to keep your workout flowing. PLAN FOR SUCCESS & STAY CONSISTENT - Workout Calendar: Schedule your training sessions and rest days to stay consistent and accountable. - Never Miss a Day: Get notifications for upcoming workouts and see your completion history at a glance. TRACK MORE THAN JUST WEIGHTS - Progress Photos: Take photos directly in the app and compare them side-by-side to visualize your body transformation. - Bodyweight Tracking: Log your weight to connect your strength gains with your physical progress. TRY REPX FOR FREE Download for free and log complete workouts on three different days to experience the core features firsthand. UNLOCK REPX PREMIUM A subscription unlocks unlimited workout logging. Gain full, unrestricted access to all features to smash your goals without limitation. Privacy Policy: https://repxapp.net/privacy EULA: https://repxapp.net/eula

About

Simple AI Workout Tracker

Easily log your exercises and monitor your fitness journey. For compatible devices, unlock AI-powered features like exercise guidance, personalized coaching, and detailed workout recaps.

Highlights
  • Build custom workouts
  • Assign workouts to days
  • Track progress
  • AI exercise explanations
  • AI Coach
  • Workout summaries
Features
Read full description

Easy to use and free workout tracker. Build workouts, assign them to days of the week, and track progress. For devices with Apple Intelligence, get a bunch of helpful AI features- exercise explanations, AI Coach, workout summaries, and more.

Screenshots

RepX4 screens
Simple AI Workout Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple AI Workout Tracker at none against RepX's 2. RepX's advantage is ratings volume (18 vs 2) and device support (3 vs 1). On price, rating, ads and iOS requirement 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. RepX sells 2 in-app purchases, starting at $0.99 per month. Simple AI Workout Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for RepX against 5.0 for Simple AI Workout Tracker. That said, the two scores are not equally well evidenced: RepX has 18 ratings behind it against 2, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
RepX versus Simple AI Workout Tracker: the parameters behind the verdict, then further details
ParameterRepXSimple AI Workout Tracker
PriceFreeFree
Rating5.0 (18 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings18 — better2
Update frequencyDaily—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.0 — better18.6
Further details — not scored
Size30 MB5 MB
Age rating4+4+
DeveloperRepX LLCNathan Anthony

Customer experience

RepX

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Simple AI Workout Tracker

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

RepX

Subscriptions2
  • RepX Monthly Premium14 Days trial$0.991 Month
  • RepX Annual Premium14 Days trial$5.991 Year
None

Simple AI Workout Tracker

No in-app purchases

Questions

Is RepX free?
RepX is free to download, with in-app purchases available.
Is Simple AI Workout Tracker free?
Simple AI Workout Tracker is free to download, with no in-app purchases.
Which has better reviews, RepX or Simple AI Workout Tracker?
RepX and Simple AI Workout Tracker are both rated 5.0 out of 5 on the App Store, from 18 and 2 ratings respectively.
Do RepX or Simple AI Workout Tracker have ads?
Neither RepX nor Simple AI Workout Tracker shows ads.

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