FlexPro Grip vs CSP Amplify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlexPro Grip
This app works with a specialized device to create customized training programs for baseball pitchers. It measures baseline strength and endurance to improve pitching performance, reduce injury risk, and accelerate recovery. Track your progress with saved workout history.
- Customized training protocols
- Strength, endurance, and RPD testing
- Objective data measurements
- Injury risk reduction
- Performance enhancement
- Workout history tracking
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OVERVIEW: The FlexPro Grip app is to be used along with the FlexPro Grip device. Designed primarily for baseball pitchers, the FlexPro Grip app provides customized training protocols to be performed on the FlexPro Grip device to improve the strength, endurance and explosiveness of the muscles and tendons from your fingertips through your elbow that most impact pitching performance. There is no guesswork. All data measurements are objective. The result: reduce the chance of tearing your UCL improve your spin rate increase your pitch movement throw harder enhance your command last longer in games recover faster after you throw accelerate your rehab if you are recovering from a UCL injury / forearm strain HOW APP WORKS: The app first guides you through a Strength, Endurance, and / or Rate of Force Development test to measure your baseline levels. Then, the app prescribes you with customized training protocols that specify the amount of force to apply, hold times, and the number of sets, reps, exercises to perform to help you make rapid gains in both your health and pitching performance. All workouts are saved to your History so you can track your progress at any time. NO MEDICAL ADVICE: The protocols are intended to provide recommendations but do not constitute medical advice. As with any form of sports or physical training, seek professional medical advice prior to initiating use.
CSP Amplify
Access expert-designed exercises and personalized training programs trusted by professional athletes. Features hundreds of professionally filmed demonstrations, clear technique instructions, and progress tracking to help you maximize your performance. Optimized for serious athletes and fitness enthusiasts.
- Expert exercise library with hundreds of demonstrations
- Personalized training recommendations
- Progress tracking and workout history
- Curated workout programs
- Offline video playback
- Dark mode support
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CRESSEY SPORTS PERFORMANCE - ELITE TRAINING, ANYWHERE Transform your training with the official Cressey Sports Performance mobile app. Get instant access to the same expert-designed exercises and programs trusted by professional athletes, collegiate teams, and serious fitness enthusiasts worldwide. WHAT YOU'LL GET EXPERT EXERCISE LIBRARY Hundreds of professionally filmed exercise demonstrations Clear technique instructions and coaching cues Categorized by movement patterns, equipment, and training goals High-quality video playback with detailed form breakdowns PERSONALIZED TRAINING Smart exercise recommendations based on your experience level Customized workout collections for your specific goals Progress tracking to monitor your training journey Favorite and bookmark exercises for quick access ORGANIZED COLLECTIONS Curated workout programs for different training phases Exercise progressions and regressions Sport-specific training protocols Injury prevention and corrective exercise sequences TRAINING NOTES & HISTORY Add personal notes to any exercise Track your exercise history and frequency Review past workouts and training sessions Build your personalized exercise database WORLD-CLASS EXPERTISE Access proven training methods from Eric Cressey and the CSP coaching team — the same professionals who have worked with: MLB All-Stars and World Series Champions NFL Pro Bowlers and Super Bowl Champions Olympic athletes and elite performers Thousands of dedicated athletes at all levels SEAMLESS EXPERIENCE Smooth, intuitive interface designed for athletes Offline-capable video playback Background audio support for music while training Full-screen video mode for detailed viewing Dark mode optimized for gym environments POWERFUL FEATURES Advanced filtering and search capabilities Multiple category organization Equipment-based exercise sorting Regular content updates with new exercises Cloud sync across all your devices WHO IT'S FOR Serious athletes looking to maximize performance Strength and conditioning professionals Personal trainers seeking expert exercise demonstrations Fitness enthusiasts committed to proper technique Anyone wanting access to world-class training methods ABOUT CRESSEY SPORTS PERFORMANCE CSP has been at the forefront of sports performance training for over two decades. Our evidence-based approach combines cutting-edge research with real-world application, helping thousands of athletes achieve their goals safely and effectively. Founded by renowned performance coach Eric Cressey, CSP has become the go-to resource for athletes who refuse to settle for average. Our training methods are backed by science, proven by results, and now available in the palm of your hand. SUBSCRIPTION REQUIRED This app requires an active CSP subscription to access content. Visit ericcressey.com to learn more about membership options and start your journey to peak performance. SUPPORT Questions or feedback? Our team is here to help: Email: support@ericcressey.com Website: www.ericcressey.com Train smarter. Perform better. Download the CSP app today.
Screenshots
Verdict
The clearest difference is rating: CSP Amplify at 5.0 against FlexPro Grip's 4.1. CSP Amplify also leads on review sentiment (100% vs 67%) and iOS requirement (13.0 vs 15.1). FlexPro Grip's advantage is monetization model (free vs subscription) and update cadence (weekly vs monthly). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CSP Amplify holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 27 and 14 respectively. Written reviews point the same way: 67% of FlexPro Grip's written reviews are positive against 100% of CSP Amplify's.
FlexPro Grip ships an update weekly, CSP Amplify monthly. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.
| Parameter | FlexPro Grip | CSP Amplify |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (27 ratings) | 5.0 (14 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 27 — better | 14 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 93 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | FlexProGrip | Cressey Training Systems, LLC |
Customer experience
FlexPro Grip
CSP Amplify
In-app purchases
FlexPro Grip
No in-app purchases
CSP Amplify
No in-app purchases
Questions
Is FlexPro Grip free?
Is CSP Amplify free?
Which has better reviews, FlexPro Grip or CSP Amplify?
Do FlexPro Grip or CSP Amplify have ads?
Which is updated more often, FlexPro Grip or CSP Amplify?
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