Flex AI Workout Trainer & Log vs Gymguru
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
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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.
Gymguru
This app helps you build and track your workout routines, focusing on logging sets, reps, and weight. It offers features like streak tracking for consistency and a clean interface. Premium unlocks custom plans, AI coaching, and detailed progress stats.
- Workout plan builder
- Exercise tracking (sets, reps, weight)
- Streak tracking for consistency
- Custom workout plans
- AI Coach for guidance
- Progress stats and personal records
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GymGuru builds your workout plan and tracks everything so you can focus on lifting. START FREE Get a full body workout plan and start training immediately: • Full body workouts on your schedule • Exercise tracking with sets, reps, and weight • Streak tracking to keep you consistent • Clean interface that stays out of your way PREMIUM SUBSCRIPTION Unlock the full experience: • Custom workout plans (Push/Pull/Legs, Upper/Lower, Bro Split) • Skip specific muscle groups • Workout history and exercise records • Progress stats and personal records • AI Coach for guidance SUBSCRIPTION OPTIONS • Weekly: $7.99/week • Monthly: $19.99/month • Yearly: $149.99/year (7-day free trial) Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.gymguru.io/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Gymguru at 100% against Flex AI Workout Trainer & Log's 69%. Gymguru also leads on rating (5.0 vs 4.6) and update cadence (every 3 days vs every 9 days). Flex AI Workout Trainer & Log's advantage is ratings volume (2.4K vs 3). On price, ads, in-app purchases and monetization model 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 $1.99 per month and Gymguru sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Gymguru holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flex AI Workout Trainer & Log has 2.4K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 69% of Flex AI Workout Trainer & Log's written reviews are positive against 100% of Gymguru's.
Flex AI Workout Trainer & Log ships an update every 9 days, Gymguru every 3 days. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.
| Parameter | Flex AI Workout Trainer & Log | Gymguru |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.4K ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 69.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.4K — better | 3 |
| Update frequency | Every 9 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 574 MB | 43 MB |
| Age rating | 17+ | 17+ |
| Developer | Flex Artificial Intelligence Inc. | Yernar Izbatyrov |
Customer experience
Flex AI Workout Trainer & Log
Gymguru
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
Gymguru
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Flex AI Workout Trainer & Log
- Premium Subscription Monthly$1.991 Month
- Premium Plus Monthly$2.991 Month
- Premium Yearly Subscription$9.991 Year
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- Premium Plus Family Monthly$9.991 Month
- Premium Plus Yearly7 Days trial$19.991 Year
- Premium Plus Family Yearly7 Days trial$49.991 Year
- 1 Month Free PremiumFree
- Lifetime Free PremiumFree
Gymguru
- Weekly Subscription$3.997 Days
- Monthly Subscription$9.991 Month
- Yearly Subscription$49.991 Year
Questions
Is Flex AI Workout Trainer & Log free?
Is Gymguru free?
Which has better reviews, Flex AI Workout Trainer & Log or Gymguru?
Do Flex AI Workout Trainer & Log or Gymguru have ads?
Which is updated more often, Flex AI Workout Trainer & Log or Gymguru?
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