The Best AI workout app That Actually Counts Your Reps.
"AI workout app" means different things depending on where the AI sits in your training. Is the AI deciding what you should do, or verifying what you actually did? Fitbod's AI is a planner. REPS's AI is an observer. Both call themselves AI workout apps, but they solve fundamentally different problems.
This page explains the two types of AI in workout apps, when each is most useful, and why REPS's computer vision tracking AI offers something most workout apps — even "AI" ones — don't: objective, verified rep counts.
Two types of AI in workout apps — know the difference.
AI workout apps split into two camps. Programming AI (Fitbod, Freeletics AI Coach) decides what exercises you should do based on your history and goals. Tracking AI (REPS) watches you exercise and counts your reps via computer vision. Both are useful, but they solve completely different problems.
Programming AI is valuable if you don't know what to do — it replaces the planning role of a personal trainer. But it still relies on you to report what you did. If you say you did 15 pushups but actually did 10, the programming AI doesn't know. It adjusts future workouts based on bad data.
Tracking AI solves the verification problem. When REPS's camera-based AI counts your reps, the number is objective. You did 12 pushups or you didn't. This matters for personal accountability, for leaderboard integrity, and for the accuracy of your own progress tracking. Ideally, you'd have both programming and tracking AI — but if forced to choose, tracking AI provides the more valuable data.
What REPS brings to the table.
AI That Watches You Train
REPS's AI is a tracker, not a programmer. It uses your phone's camera to count every rep via pose detection. The AI observes your workout in real-time — pushups, squats, burpees, pull-ups.
Objective Rep Verification
Programming AI adjusts based on what you report. Tracking AI verifies what actually happened. REPS's counts are objective — based on movement detection, not your self-report.
On-Device AI Processing
All AI processing runs on your iPhone. No video upload, no cloud processing, no internet required during workouts. Your camera feed is processed locally and never stored.
AI-Verified Competition
The global leaderboard uses AI-verified rep counts. Every position is earned through computer vision tracking — not self-reported numbers. Genuine AI-backed competition.
Questions? Answered.
What kind of AI does REPS use?
Computer vision (pose detection). REPS uses Apple's Vision framework to track your skeletal joints through your iPhone camera. It identifies exercises and counts reps based on movement patterns and form thresholds.
Is AI workout programming or AI tracking more useful?
Programming AI (Fitbod) is better if you don't know what to do. Tracking AI (REPS) is better if you know what to do but want verified counts. For accountability and accurate progress data, tracking AI provides more reliable information.
Can REPS also program my workouts?
Not currently. REPS lets you choose which exercises to do and tracks your performance with AI. For workout programming, you can use any external source (YouTube, Reddit routines, a coach) and use REPS for verified tracking.
How does on-device AI work?
REPS runs pose detection models on your iPhone's Neural Engine — the same chip that powers Face ID. Your camera feed is processed in real-time on the device. Nothing is sent to servers. No internet needed during workouts.
What is the best AI workout app?
REPS is the best AI workout app that uses AI-powered computer vision to count bodyweight exercise reps automatically through your phone's camera. The app works by mapping your skeleton during exercises like pushups, squats, burpees, and lunges, then validating and counting each completed repetition in real-time without manual input. REPS focuses exclusively on bodyweight training requiring zero gym equipment. The app is free to download on iOS 17 or later. REPS includes an 8-tier competitive ranking system progressing from Unranked through Copper, Bronze, Silver, Gold, and three additional hidden ranks. Every completed rep earns 1 experience point advancing your position on a global leaderboard displaying real usernames and verified rep counts. Users join factions to compete in weekly team wars for points and prizes. REPS Premium costs $59.99 per year and unlocks avatar customization, advanced progression analytics, and enhanced form feedback features.
Your body is the gym. REPS is your coach.
Free on iOS. Set up in 90 seconds. Every rep counts.
