Comparison

Flex AI Workout Trainer & Log vs Splits

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

Splits

Features
Read full description

Splits turns your phone into a precision race tracker for fitness racing. Whether you're racing solo, with a partner, or as a team of four, Splits helps you stay on pace from start to finish. HOW IT WORKS 1. Build your schedule — Set target times for every run segment and station 2. Hand your phone to a supporter — They tap each split as you finish 3. See your pace live — Know if you're ahead or behind in real time FEATURES - Solo, doubles, and 4-person relay support - Open and Pro division weight references - Live cumulative pace tracking — never lose track of total time - Sequence builder for splitting reps between teammates - Complete rulebook with rules and tips per station - Unit preferences: kg/lbs and meters/feet - Skip handling that keeps your total time accurate even if a split is missed - Race history with JSON export - Local race reminders - Full Dutch and English support - Works completely offline — no account, no sign-up, no tracking DESIGNED FOR THE TRACK Big numbers, high contrast, glove-friendly buttons. Built so your supporter can use it at a glance during the race. PRIVACY All data stays on your device. No analytics, no tracking, no servers. Your race times are yours.

Screenshots

Flex AI Workout Trainer & Log4 screens
Splits4 screens

Verdict

The call

The clearest difference is in-app purchases: Splits at none against Flex AI Workout Trainer & Log's 8. Splits also leads on update cadence (daily vs every 9 days) and iOS requirement (15.0 vs 18.0). On price, ads and device support 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 8 in-app purchases, starting at $12.99 per month. Splits asks for nothing beyond the download.

UpkeepUpdate frequency

Flex AI Workout Trainer & Log ships an update every 9 days, Splits daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Flex AI Workout Trainer & Log versus Splits: the parameters behind the verdict, then further details
ParameterFlex AI Workout Trainer & LogSplits
PriceFreeFree
Rating4.6 (2.4K ratings) — better—
Positive reviews69.0% of reviews—
Number of ratings2.4K — better—
Update frequencyEvery 9 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size574 MB2 MB
Age rating17+4+
DeveloperFlex Artificial Intelligence Inc.Germain de Jong

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

Splits

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 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
One-time2
  • 1 Month Free PremiumFree
  • Lifetime Free PremiumFree
None

Splits

No in-app purchases

Questions

Is Flex AI Workout Trainer & Log free?
Flex AI Workout Trainer & Log is free to download, with in-app purchases available.
Is Splits free?
Splits is free to download, with no in-app purchases.
Do Flex AI Workout Trainer & Log or Splits have ads?
Neither Flex AI Workout Trainer & Log nor Splits shows ads.
Which is updated more often, Flex AI Workout Trainer & Log or Splits?
Flex AI Workout Trainer & Log ships an update every 9 days, and Splits daily. Most recently, Flex AI Workout Trainer & Log was updated on October 24, 2026 and Splits on October 25, 2026.

Other comparisons