Comparison

Flex AI Workout Trainer & Log vs Train & Faith

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

Train & Faith

Features
Read full description

Train & Faith brings Christian music, focus, movement and spiritual motivation together to help you turn every workout into a more purposeful moment. The app was created for people who want to train while listening to content that strengthens their faith, supports concentration and brings deeper meaning to each session. Whether you are at the gym, on the treadmill, walking, training at home or stretching, Train & Faith gives you a simple experience designed for body, mind and spirit. With Christian workout mixes, short devotional moments before training, consistency tracking and light movement support, Train & Faith helps you build a stronger and more intentional routine. Main features: • Christian mixes for workouts and focus • Music for gym, running, walking, focus and relaxation • A short moment with God before training • Bible-inspired reflections to support motivation • Streaks, progress and achievement tracking • Light movements for warm-up, stretching or recovery • A clean, modern experience built for daily use Train & Faith is more than a workout music app. It is a place to begin your session with intention, stay focused while moving and remember that caring for your body can also be an act of discipline, gratitude and purpose. Use it to: • Train at the gym with Christian music • Walk or run with gospel motivation • Build a more consistent fitness routine • Start your workout with prayer and reflection • Track your physical and spiritual progress • Use light movements when you need to slow down If you are looking for Christian workout music, gospel fitness, gym motivation, daily devotionals, prayer before exercise, faith-based training or a more meaningful way to care for your body, Train & Faith was made for you. Train with faith. Stay focused. Move with purpose.

Screenshots

Flex AI Workout Trainer & Log4 screens
Train & Faith4 screens

Verdict

The call

The clearest difference is rating: Flex AI Workout Trainer & Log at 4.6 against Train & Faith's 1.0. Flex AI Workout Trainer & Log also leads on ratings volume (2.4K vs 1). Train & Faith's advantage is iOS requirement (15.0 vs 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flex AI Workout Trainer & Log sells 6 in-app purchases, starting at $12.99 per month and Train & Faith sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flex AI Workout Trainer & Log holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Flex AI Workout Trainer & Log has 2.4K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Flex AI Workout Trainer & Log ships an update every 9 days, Train & Faith every 2 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Flex AI Workout Trainer & Log versus Train & Faith: the parameters behind the verdict, then further details
ParameterFlex AI Workout Trainer & LogTrain & Faith
PriceFreeFree
Rating4.6 (2.4K ratings) — better1.0 (1 ratings)
Positive reviews69.0% of reviews—
Number of ratings2.4K — better1
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size574 MB13 MB
Age rating17+4+
DeveloperFlex Artificial Intelligence Inc.Marcelo Pereira

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

Train & Faith

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Flex AI Workout Trainer & Log

Subscriptions6
  • Premium Subscription Monthly$12.991 Month
  • Premium Plus Monthly$29.991 Month
  • Premium Plus Family Monthly$69.991 Month
Show 3 more
  • Premium Yearly Subscription$79.991 Year
  • Premium Plus Yearly7 Days trial$191.991 Year
  • Premium Plus Family Yearly7 Days trial$499.991 Year
2 purchases

Train & Faith

Subscriptions2
  • Premium Monthly$3.991 Month
  • Premium Yearly$29.991 Year

Questions

Is Flex AI Workout Trainer & Log free?
Flex AI Workout Trainer & Log is free to download, with in-app purchases available.
Is Train & Faith free?
Train & Faith is free to download, with in-app purchases available.
Which has better reviews, Flex AI Workout Trainer & Log or Train & Faith?
Flex AI Workout Trainer & Log is rated higher. Flex AI Workout Trainer & Log averages 4.6 out of 5 from 2.4K ratings, while Train & Faith averages 1.0 from 1 ratings.
Do Flex AI Workout Trainer & Log or Train & Faith have ads?
Neither Flex AI Workout Trainer & Log nor Train & Faith shows ads.
Which is updated more often, Flex AI Workout Trainer & Log or Train & Faith?
Flex AI Workout Trainer & Log ships an update every 9 days, and Train & Faith every 2 weeks. Most recently, Flex AI Workout Trainer & Log was updated on November 2, 2026 and Train & Faith on November 5, 2026.

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