Comparison

Flex AI Workout Trainer & Log vs Avatone

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

Head to head
About

Flex AI Workout Trainer & Log

This app uses AI to provide personalized workout plans and real-time form feedback for weightlifters. It tracks progress, offers adaptive progression, and includes motivational features like leaderboards and streaks. It's designed for all experience levels, from beginners to pros.

Highlights
  • AI personal trainer
  • Real-time form feedback
  • Personalized workout plans
  • Adaptive progression
  • Strength tracking
  • Community leaderboards
  • Apple Watch integration
Features
Read full description

Flex AI is the world’s first true AI personal trainer — built for lifters who want to train smarter, progress faster, and perfect their form. Whether you’re chasing size, strength, or consistency, Flex uses real-time AI to guide every rep, adjust your program, and keep you motivated through challenges, leaderboards, and streaks. - Your AI Coach, Every Rep Personalized workouts built automatically by AI personas that learn your goals, history, and preferences. Real-time form feedback powered by patented computer-vision AI — get instant corrections on squats, bench, deadlift, rows, and more. Adaptive progression and deloading backed by sports-science principles — no spreadsheets, no guesswork. - Train Smarter — See Results AI tracks your strength curve and increases weight when you’re ready. Visual progress graphs show PRs, volume, and recovery trends. Track sets, reps, and tempo with a tap — or automatically with Apple Watch. - Stay Motivated & Connected Join a global community of lifters. Compete on leaderboards, build streaks, and earn badges. Post progress photos, celebrate milestones, and share results. - Accessible to Everyone Free to start with all core features included. Upgrade anytime for advanced AI coaching and premium analytics. Designed for all experience levels — from beginners to pros. - Why Flex AI Real-time AI form feedback (patented) Adaptive, science-based programming Progress tracking & recovery insights Gamified streaks + leaderboards Apple Watch integration Built for hypertrophy & strength goals Start Training Smarter — Today Download Flex AI and experience personal training powered by real AI. Perfect your form. Unlock your best lift. Train smarter — free on iPhone + Apple Watch.

About

Avatone

This app transforms your fitness progress into a visual avatar that grows stronger with every workout. Log various exercises, set personalized goals, and stay motivated with an engaging leveling system and real-time performance insights. It's designed to make your fitness journey rewarding and fun.

Highlights
  • Workout logging (reps, sets, cardio)
  • Avatar fitness system
  • Strength and cardio tracking
  • Real-time performance insights
  • Customizable fitness goals
  • Workout history log
Features
Read full description

Avatone is a fitness app and workout tracker that transforms your real progress into a powerful fitness avatar. Whether you're training at the gym, running, or starting your fitness journey, Avatone helps you stay motivated with visual progress tracking, personalized goals, and an engaging leveling system. Why Athletes Choose Avatone Fitness App + Workout Tracker: Log your workouts, reps, sets, and cardio sessions with a clean and intuitive interface. Avatar Fitness System: Every workout powers up your avatar—get stronger, leaner, and more defined as you progress. Strength Training & Cardio Tracking: Track weightlifting, running, bodyweight exercises, and more. Real-Time Performance Insights: View metrics, charts, and trends to understand how your workouts improve your performance. Motivation Through Visualization: See instant feedback on your fitness avatar as you hit milestones and complete workouts. Customizable Fitness Goals: Set goals for reps, weight, distance, calories burned, or workout streaks. Engaging Progress Experience: Celebrate every level-up, streak, and achievement as your avatar evolves. Supportive Fitness Community: Share your progress, connect with others, and stay accountable together. Workout History Log: Revisit past workouts and track long-term improvement over time. A Workout Tracker Designed for Everyone Whether you're lifting at the gym, training at home, or running outdoors, Avatone gives you the tools to stay consistent and motivated. Log workouts, track goals, and watch your avatar transform as your fitness improves. Level up your fitness avatar. Track workouts. Stay motivated. Avatone makes your fitness journey visual, rewarding, and fun! Avatone Max is an auto-renewable subscription, available as a monthly or an annual plan. Pricing for your region is shown in the app before you confirm any purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the current period ends. You can manage or cancel your subscription in your Apple Account settings at any time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://avatone.co/privacy-policy

Screenshots

Flex AI Workout Trainer & Log4 screens
Avatone4 screens

Verdict

The call

The clearest difference is ads: Flex AI Workout Trainer & Log at none against Avatone's shown. Flex AI Workout Trainer & Log also leads on ratings volume (2.4K vs 524). Avatone's advantage is monetization model (free vs freemium) and review sentiment (94% vs 69%). On price, update cadence, in-app purchases and device support 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. Flex AI Workout Trainer & Log sells 8 in-app purchases, starting at $1.99 per month and Avatone sells 10 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Avatone holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 2.4K and 524 respectively. Written reviews point the same way: 69% of Flex AI Workout Trainer & Log's written reviews are positive against 94% of Avatone's.

UpkeepUpdate frequency

Flex AI Workout Trainer & Log ships an update every 9 days, Avatone fortnightly. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
Flex AI Workout Trainer & Log versus Avatone: the parameters behind the verdict, then further details
ParameterFlex AI Workout Trainer & LogAvatone
PriceFreeFree
Rating4.6 (2.4K ratings)4.9 (524 ratings) — better
Positive reviews69.3% of reviews94.3% of reviews — better
Number of ratings2.4K — better524
Update frequencyEvery 9 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size574 MB192 MB
Age rating17+4+
DeveloperFlex Artificial Intelligence Inc.Avatone Technology

Customer experience

Flex AI Workout Trainer & Log

All ratings2,405 ratings
Positive92.0%
Neutral2.6%
Negative5.4%
Written reviews303 reviews
Positive69.3%
Neutral6.6%
Negative24.1%

Avatone

All ratings524 ratings
Positive98.9%
Neutral0.8%
Negative0.4%
Written reviews105 reviews
Positive94.3%
Neutral3.8%
Negative1.9%

User reviews

Flex AI Workout Trainer & Log

From 2.4K App Store ratings

What we love

  • 🚀 Detailed workout tracking
  • 👍 Customizable workouts
  • 🔒 Comprehensive exercise library
  • 💡 Helpful progress tracking
  • 👍 Clean and intuitive interface

Room to improve

  • 🐛 Glitches and bugs
  • 💰 Expensive premium subscription
  • 🔒 Limited functionality without premium
  • 🐛 Inconsistent rest timer
  • 🐛 Workout data loss

Avatone

From 524 App Store ratings

What we love

  • 👍 Motivating and productive workouts
  • 🚀 Effective tier system and ranking
  • 💡 Engaging and fun approach to fitness
  • 👍 Beginner-friendly and easy to use

Room to improve

  • 🤔 Suggestion to use reps instead of time-based exercises

Bugs and requests

Flex AI Workout Trainer & Log

Reported bugs

3 issues
  • App crashes on iOS 16 update
  • Inability to log workouts on previous days
  • Inconsistent syncing between app and Apple Watch

Requested features

4 requests
  • Offline workout mode
  • Ability to save and reuse custom workout plans
  • Muscle group targeting and analytics
  • Social features and community integration

Avatone

Reported bugs

1 issue
  • Age restriction issue during sign-up

Requested features

2 requests
  • Upcoming games and new features
  • More customization options

In-app purchases

8 purchases

Flex AI Workout Trainer & Log

Subscriptions6
  • Premium Subscription Monthly$1.991 Month
  • Premium Plus Monthly$2.991 Month
  • Premium Yearly Subscription$9.991 Year
Show 3 more
  • Premium Plus Family Monthly$9.991 Month
  • Premium Plus Yearly7 Days trial$19.991 Year
  • Premium Plus Family Yearly7 Days trial$49.991 Year
One-time2
  • 1 Month Free PremiumFree
  • Lifetime Free PremiumFree
10 purchases

Avatone

Subscriptions2
  • Avatone Max Monthly$9.991 Month
  • Avatone Max Annual$59.991 Year
One-time8
  • Fistful of Aether$0.99
  • Founders Bundle (Male)$4.99
  • Founders Bundle (Female)$4.99
Show 5 more
  • Shaker of Aether$4.99
  • Cache of Aether$9.99
  • Vault of Aether$19.99
  • Dragon Hoard of Aether$49.99
  • Cataclysm of Aether$99.99

Questions

Is Flex AI Workout Trainer & Log free?
Flex AI Workout Trainer & Log is free to download, with in-app purchases available.
Is Avatone free?
Avatone is free to download, with in-app purchases available.
Which has better reviews, Flex AI Workout Trainer & Log or Avatone?
Avatone is rated higher. Flex AI Workout Trainer & Log averages 4.6 out of 5 from 2.4K ratings, while Avatone averages 4.9 from 524 ratings.
Do Flex AI Workout Trainer & Log or Avatone have ads?
Avatone shows ads; Flex AI Workout Trainer & Log does not.
Which is updated more often, Flex AI Workout Trainer & Log or Avatone?
Flex AI Workout Trainer & Log ships an update every 9 days, and Avatone fortnightly. Most recently, Flex AI Workout Trainer & Log was updated on September 29, 2026 and Avatone on September 27, 2026.

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