Comparison

Flex AI Workout Trainer & Log vs Menti

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

Menti

Features
Read full description

Menti - Your Personal Mental Wellness Companion Transform your mental wellness journey with Menti, your modern companion for emotional growth and daily mindfulness. We've created a thoughtfully designed space where technology meets mental well-being, helping you track, improve, and maintain your psychological health. Start your journey with our mood tracking system. Log your daily emotions and thoughts through our simple yet powerful mood entry feature, helping you understand your emotional patterns over time. Watch your progress through clean, insightful statistics that bring your mental wellness journey to life. Express yourself freely in our private journaling space, where you can document your thoughts, feelings, and daily experiences. Whether you're celebrating victories or processing challenges, your digital journal is your safe space for self-reflection and emotional release. Set and track meaningful personal goals that align with your mental wellness journey. Our goal-setting feature helps you break down your aspirations into achievable steps, keeping you motivated and focused on your path to personal growth. Find moments of calm with our guided breathing exercises, designed to help you manage stress and anxiety. Take a mindful pause whenever you need it, using our simple but effective breathing techniques to center yourself during busy days. Need someone to talk to? Our AI chat support is here 24/7, offering a judgment-free space for conversation, support, and guidance. Share your thoughts, ask questions, or seek advice from our intelligent chat companion whenever you need it. Personalize your experience with our thoughtfully designed dark mode, creating a comfortable environment for reflection at any time of day. Our clean, intuitive interface ensures a seamless experience across all your devices. Your privacy and security are our top priorities. With robust authentication methods and data protection, your personal information stays private and secure, giving you peace of mind as you focus on your wellness journey. Download Menti today and take the first step toward a more mindful, balanced life. Your journey to better mental wellness starts here! Note: Some features may require an active internet connection. * Payment will be charged to your Apple account at confirmation of purchase. * Your subscription will automatically renew itself, unless auto-renewal is turned off before the end of the current period. * You can manage your subscriptions and turn off auto-renewal by going to your Settings in your Apple Account. * Please refer to terms and conditions by Apple (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/). * Your data is stored and protected with end-to-end encryption (https://mentiapp.com/privacy-policy).

Screenshots

Flex AI Workout Trainer & Log4 screens
Menti4 screens

Verdict

The call

Flex AI Workout Trainer & Log and Menti are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. Flex AI Workout Trainer & Log sells 8 in-app purchases, starting at $1.99 per month and Menti sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on September 23, 2026 and August 3, 2026 respectively.

ScorecardNo meaningful differences
Flex AI Workout Trainer & Log versus Menti: the parameters behind the verdict, then further details
ParameterFlex AI Workout Trainer & LogMenti
PriceFreeFree
Rating4.6 (2.4K ratings) — better—
Positive reviews69.3% of reviews—
Number of ratings2.4K — better—
Update frequencyEvery 9 daysEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS18.017.6 — better
Further details — not scored
Size574 MB38 MB
Age rating17+4+
DeveloperFlex Artificial Intelligence Inc.Izel Avimelek

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

Menti

Not enough reviews yet to summarise bugs or requests.

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
3 purchases

Menti

Subscriptions2
  • Monthly Premium Subscription1 Month trial$5.991 Month
  • Yearly Premium Subscription$59.991 Year
One-time1
  • Lifetime Purchase$199.99

Questions

Is Flex AI Workout Trainer & Log free?
Flex AI Workout Trainer & Log is free to download, with in-app purchases available.
Is Menti free?
Menti is free to download, with in-app purchases available.
Do Flex AI Workout Trainer & Log or Menti have ads?
Neither Flex AI Workout Trainer & Log nor Menti shows ads.
Which is updated more often, Flex AI Workout Trainer & Log or Menti?
Flex AI Workout Trainer & Log ships an update every 9 days, and Menti every 9 days. Most recently, Flex AI Workout Trainer & Log was updated on September 23, 2026 and Menti on August 3, 2026.

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