Flex AI Workout Trainer & Log vs Lets Get Fit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- AI personal trainer
- Real-time form feedback
- Personalized workout plans
- Adaptive progression
- Strength tracking
- Community leaderboards
- Apple Watch integration
Read full descriptionHide 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.
Lets Get Fit
Read full descriptionHide full description
Your All-in-One Home Fitness & Nutrition App Join thousands of women transforming their health from home with workouts, nutrition and simple tools that help you get real results. Whether your goal is to lose weight, build strength, tone up or simply feel healthier, Let's Get Fit gives you everything you need in one place. 1,000+ Real-Time Workouts Choose from over 1,000 professionally guided workouts including strength training, HIIT, Pilates, boxing, low impact, mobility and more. With workouts from just 15 minutes to 60 minutes, there's something for every fitness level. Weekly Workout Plans Never wonder what workout to do next. Every week Charlotte creates a brand-new Monday–Sunday workout schedule, taking the guesswork out of your fitness journey and helping you stay consistent. Healthy Recipes Discover delicious, high-protein recipes with full calorie and macro information to help you fuel your body and stay on track. Calorie Calculator Not sure how much you should be eating? Our built-in calorie calculator works out your personalised daily calorie target based on your goals, whether you're looking to lose weight, maintain or build muscle. Food Tracker Quickly log your meals, monitor your calorie intake and track your daily progress with our simple food diary and progress tracker. Track Your Progress Monitor your workouts, nutrition and progress over time so you can celebrate every milestone and stay motivated. A Supportive Community You're never doing it alone. Join our private community where hundreds of women motivate, encourage and support each other every step of the way. Designed by Charlotte Thorne Charlotte has helped thousands of women build healthier, stronger lifestyles through realistic home workouts that fit around busy lives. Start today with a 7-day free trial and discover why so many women choose Let's Get Fit as their daily fitness companion. Please note that the LGF app is a subscription based service with a 7 day free trial when you first sign up. Terms of Use: https://letsgetfit.com/terms Privacy Policy: https://letsgetfit.com/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: Lets Get Fit at 15.6 against Flex AI Workout Trainer & Log's 18.0. On price, update cadence, 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
Both are free to download. Flex AI Workout Trainer & Log sells 8 in-app purchases, starting at $12.99 per month and Lets Get Fit sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
Flex AI Workout Trainer & Log ships an update every 9 days, Lets Get Fit every 8 days. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.
| Parameter | Flex AI Workout Trainer & Log | Lets Get Fit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.4K ratings) — better | — |
| Positive reviews | 69.0% of reviews | — |
| Number of ratings | 2.4K — better | — |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 574 MB | 84 MB |
| Age rating | 17+ | 4+ |
| Developer | Flex Artificial Intelligence Inc. | CT Fitness LTD |
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
Lets Get Fit
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Flex AI Workout Trainer & Log
- Premium Subscription Monthly$12.991 Month
- Premium Plus Monthly$29.991 Month
- Premium Plus Family Monthly$69.991 Month
Show 3 moreShow fewer
- Premium Yearly Subscription$79.991 Year
- Premium Plus Yearly7 Days trial$191.991 Year
- Premium Plus Family Yearly7 Days trial$499.991 Year
- 1 Month Free PremiumFree
- Lifetime Free PremiumFree
Lets Get Fit
- Monthly Membership7 Days trial$14.991 Month
- Annual Membership7 Days trial$99.991 Year
Questions
Is Flex AI Workout Trainer & Log free?
Is Lets Get Fit free?
Do Flex AI Workout Trainer & Log or Lets Get Fit have ads?
Which is updated more often, Flex AI Workout Trainer & Log or Lets Get Fit?
Other comparisons















