RepSpeed vs FormCheck AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RepSpeed
This app uses your phone's camera to analyze barbell lifts, providing detailed metrics like bar path, velocity, and power. Optimize your training, improve form, and get stronger faster with advanced analytics.
- Automatic barbell detection
- Barbell path visualization
- Velocity and power metrics
- Video recording and upload
- Repetition tracking
- Workout notes
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Best barbell tracking app! Simply record a video from the side of your barbell lift to get detailed analytics such as bar path, range of motion, velocity/speed, and power. Join the tens of thousands of people using analytics to optimize their training and get stronger faster with this app! https://www.repspeed.net/ Features: Automatic barbell detection Trim video to eliminate excess time Take video with camera or upload from video on device Easily visualize repetitions over time View barbell path throughout lift Frame by frame playback Add notes to every workout Unlimited videos for analysis (premium) View time, velocity, and power for every repetition and set average (premium) RPE and One-Rep max calculation coming soon (premium) Use cases: Velocity based training - Lift in the correct velocity range. Power based training - Train to maximize power to increase vertical jump and explosiveness. Olympic Lifting - Know if failed lift was technical (didn't get under the bar fast enough) or because of strength (bar did not reach adequate height to get under) Correct form - Ensure the bar path is completely vertical, squat depth is low enough, catch is not too low during power clean, etc. User's thoughts: "I like seeing how fast I’m performing each rep for things like pause squats and more explosive Olympic lifts" "Nice way to visualize how much time you have between reps" "Let's me measure power on my lifts without having to spend lots of money" "I've never been able to measure my workouts so easily before" Privacy Policy: https://repspeed.s3.us-west-1.amazonaws.com/Privacy%20Policy.htm Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Don't waste hundreds of dollars buying inaccurate accelerometers or other bulky hardware to track the barbell. With just your phone and an inexpensive $1/month subscription, you'll have everything you need to optimize your training.
FormCheck AI
This AI-powered personal trainer analyzes your exercise videos to provide instant feedback on your squat, deadlift, and bench press form. Improve your technique, prevent injuries, and achieve your fitness goals with personalized guidance.
- AI video analysis for exercise form
- Deadlift, squat, and bench press correction
- Injury prevention guidance
- Personalized AI feedback
- Progress tracking
- Fitness and nutrition articles
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Welcome to FormCheck AI, the premier AI-powered personal trainer designed to help you perfect your form, increase your strength, and transform your body! Struggling with form during workouts? FormCheck AI is here to change that. Our cutting-edge AI analyzes your exercise videos and provides instant feedback on your squat, bench press, and deadlift performance. Unlock your potential and become a stronger, bigger, and healthier version of yourself! PureStrength's Key Functionalities: 1. Deadlift form correction: * Detects shoulder positioning to avoid rounding * Ensures proper hip movement and lat/core tightness * Checks lockout technique for maximum efficiency 2. Squat form analysis: * Monitors depth to ensure optimal muscle activation * Alerts users of any imbalances or alignment issues 3. Bench press guidance: * Provides feedback on bar path and control * Evaluates grip, elbow position, and body mechanics Why choose FormCheck AI? * Achieve your fitness goals with personalized AI feedback * Improve your form to prevent injuries and maximize results * Track your progress and celebrate your milestones * Access a comprehensive library of articles and videos on fitness, nutrition, and wellness Download FormCheck AI now to start your journey towards better form, increased strength, and a healthier lifestyle. Revolutionize your workouts with the power of AI! SUBSCRIPTION INFO: Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed and auto-renewal may be turned off by going to Account Settings after purchase. Support Email: madhav@purestrength.ai Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: http://purestrength.ai/privacy.txt
Screenshots
Verdict
The clearest difference is price: RepSpeed at Free against FormCheck AI's $0.99. RepSpeed also leads on review sentiment (83% vs 58%) and ratings volume (17 vs 2). FormCheck AI's advantage is rating (5.0 vs 4.5). On update cadence, ads, in-app purchases and monetization model 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
RepSpeed is free to download; FormCheck AI costs $0.99 up front. RepSpeed sells 1 in-app purchase, starting at $0.99 per month and FormCheck AI sells 6 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
FormCheck AI holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: RepSpeed has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 83% of RepSpeed's written reviews are positive against 58% of FormCheck AI's, so the app with the better star average is not the one people write more warmly about.
RepSpeed ships an update every 2 weeks, FormCheck AI fortnightly. The most recent releases landed on September 6, 2026 and September 23, 2026 respectively.
| Parameter | RepSpeed | FormCheck AI |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.5 (17 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 58.3% of reviews |
| Number of ratings | 17 — better | 2 |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 56 MB | 472 MB |
| Age rating | 4+ | 4+ |
| Developer | Sreyas Rangaraju | Purestrength Limited |
Customer experience
RepSpeed
FormCheck AI
In-app purchases
RepSpeed
- RepSpeed Premium14 Days trial$0.991 Month
FormCheck AI
- weekly pro2 variants$1.997 Days
- Discounted Monthly Sub14 Days trial$4.991 Month
- weekly pro$9.997 Days
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- Monthly Subscription$19.991 Month
- Yearly Subscription$19.991 Year
- Discounted Yearly Subscription$99.991 Year








