Flex AI Workout Trainer & Log
Flex AI Workout Trainer & Log Summary
Flex AI Workout Trainer & Log is a with in-app purchases iOS app in Health And Fitness by Flex Artificial Intelligence Inc.. Released in Dec 2021 (4 years ago). It has 4.2K ratings with a 4.60★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 16.2K monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Mar 11, 2026, version 1617.
Data tracking: SDKs and third-party integrations were last analyzed on Sep 10, 2025.
Store info: Last updated on App Store on Mar 11, 2026 (version 1617).
Flex AI Workout Trainer & Log was last scanned for SDKs 2025-09-10. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
Snap Inc.
Facebook
MongoDB
Swinject
Alamofire
Firebase
Mixpanel4.6★
Ratings: 4.2K
Screenshots
App 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.