Flex AI Workout Trainer & Log
Health & FitnessSports

Flex AI Workout Trainer & Log

Fitness Tracker & Gym Planner

Flex Artificial Intelligence Inc. · released 14 Dec 2021 · Open in App Store ↗

★ 4.58 4,736 reviews
Unlock the split between the products, the store ranks, and how both moved.See plans
6 subscriptions, no one-time purchases
Revenue %
Monthly173$10.71 – $100.0024.8%+18.0%
Annual · 7 days trial173$57.14 – $710.8524.8%+18.0%
Monthly173$3.47 – $41.5624.8%+18.0%
Annual · 7 days trial173$21.42 – $278.1424.8%+18.0%
Monthly173$2.14 – $18.6524.8%+18.0%
Annual173$10.71 – $118.7724.8%+18.0%

The store shows a different set in every country

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.

Last collected from the App Store on