Comparison

Flex AI Workout Trainer & Log vs Palio

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

Palio

Features
Read full description

Palio is an ACL recovery tracking app built by someone who's been through it. Created by an ACL patient two years post-op, Palio brings your recovery into one place, from the first weeks after injury or surgery to rebuilding strength in the gym and returning to sport. Track your progress, stay consistent with rehab, and see how far you've come. Start with a 7-day free trial, then choose a monthly, yearly, or lifetime plan. **EARLY RECOVERY** • Daily check-ins to track pain, swelling, and how your knee feels. • Track knee flexion and extension over time, manually or using your phone to measure. • Follow your daily rehab routine with simple, illustrated movement guides. • Keep goals and recovery notes organized for your next physiotherapy appointment. **STRENGTH & GYM TRACKING** • Log exercises for each leg, with previous session values automatically filled in. • Compare your recovering leg against your healthy leg, exercise by exercise. • Visualize strength progress with charts, personal bests, and weekly consistency streaks. • Create workout templates to make repeated sessions easier to log. **UNDERSTAND YOUR RECOVERY** • Explore trends in pain, swelling, range of motion, and strength over time. • Ask Palio questions about your own logged recovery data. • Generate PDF workout reports to share with your physiotherapist. • Keep a private recovery photo journal stored locally on your device. **BUILT FOR YOUR ACL JOURNEY** Whether you're preparing for surgery, recovering after reconstruction, or following a non-surgical rehabilitation plan, Palio helps you organize and track your progress. Designed for first-time ACL injuries and re-injuries alike. **SUBSCRIPTION & ACCESS** Palio Pro is required to access the app. New subscribers can start with a 7-day free trial on monthly or yearly subscriptions. After the trial, payment is charged to your Apple ID unless you cancel before the trial ends. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current subscription period. You can manage or cancel your subscription anytime through your Apple ID settings. Lifetime access is available as a one-time purchase with no recurring subscription. **IMPORTANT INFORMATION** Palio is a recovery tracking tool, not a medical service. It does not provide medical advice, diagnose conditions, prescribe rehabilitation exercises, or determine readiness to return to sport. Always follow the guidance of your surgeon and physiotherapist. Terms of Use: https://getpalio.com/terms Privacy Policy: https://getpalio.com/privacy

Screenshots

Flex AI Workout Trainer & Log4 screens
Palio4 screens

Verdict

The call

The clearest difference is iOS requirement: Palio at 15.1 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

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 Palio sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flex AI Workout Trainer & Log ships an update every 9 days, Palio fortnightly. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
Flex AI Workout Trainer & Log versus Palio: the parameters behind the verdict, then further details
ParameterFlex AI Workout Trainer & LogPalio
PriceFreeFree
Rating4.6 (2.4K ratings) — better—
Positive reviews69.0% of reviews—
Number of ratings2.4K — better—
Update frequencyEvery 9 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size574 MB57 MB
Age rating17+4+
DeveloperFlex Artificial Intelligence Inc.Saif Khamis

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

Palio

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
3 purchases

Palio

Subscriptions2
  • Palio Pro Monthly7 Days trial$6.991 Month
  • Palio Pro Yearly7 Days trial$44.991 Year
One-time1
  • Palio Pro$79.99

Questions

Is Flex AI Workout Trainer & Log free?
Flex AI Workout Trainer & Log is free to download, with in-app purchases available.
Is Palio free?
Palio is free to download, with in-app purchases available.
Do Flex AI Workout Trainer & Log or Palio have ads?
Neither Flex AI Workout Trainer & Log nor Palio shows ads.
Which is updated more often, Flex AI Workout Trainer & Log or Palio?
Flex AI Workout Trainer & Log ships an update every 9 days, and Palio fortnightly. Most recently, Flex AI Workout Trainer & Log was updated on November 11, 2026 and Palio on November 5, 2026.

Other comparisons