Mustard vs 4APP Sports
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mustard
Analyze pitching mechanics with personalized 3D motion analysis and AI-driven drills. Improve your performance with detailed feedback on key metrics and receive tailored training recommendations. Track progress and access advanced features with a premium subscription.
- Personalized 3D motion analysis
- AI-driven drill recommendations
- Key metric review for single pitches
- Skeletal overlay of delivery
- Daily arm care and warm-up program
- Progression tracking
- Coaches & Parents Platform
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TRAIN LIKE THE BEST OF ALL TIME: Get a personalized 3D motion analysis. Get drills and exercises tailored to you, and catapult your performance. PERSONALIZED 3D MOTION ANALYSIS: Based on the teachings of Dr. Tom House, coach to numerous Hall of Famers and inventor of modern pitching mechanics. Videos are automatically edited for you — you can review your key metrics for a single pitch or review summaries of entire bullpens. Learn in-depth about the mechanical elements you do well and the movements you can improve. Take videos of others and tag and invite friends. Automatically view key still frames of your throwing motion: first movement, max leg lift, footstrike, and ball release. View a skeletal overlay of your delivery. Record from front view and from open side view. PERSONALIZED TRAINING RECOMMENDATIONS: Based on your 3D motion analysis, completed through computer vision and the most advanced AI in sports. Get personalized drills to work on the mechanical variables you specifically need to improve. Get the daily arm care and warm-up program. A Mustard Premium Subscription comes with Progression Tracking and our Coaches & Parents Platform. You may purchase an auto-renewing subscription through an In-App Purchase. If you do not maintain a subscription you can only use the free portions of the app. • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew at the duration selected unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Privacy policy: https://teammstrd.com/privacy/ Terms of Use: https://teammstrd.com/terms/
4APP Sports
Enhance your pitching performance with advanced training tools and analytics. Improve velocity, command, and health, and track your progress to stand out to scouts and recruiters. Tailored programs and expert analysis help pitchers of all levels reach their full potential.
- Custom remote training
- Pitching mechanics video analysis
- Daily throwing programs
- Command tracking tools
- Daily health tracking
- Hitter attack plans
- Pitching journals
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100,000+ players and 70+ pros trust 4APP to throw harder, improve their command, and stay healthy while doing it. Created by Cy Young Award winner Trevor Bauer, 4APP helps pitchers dramatically improve their game with: - Custom Remote Training tailored to your goals and needs - Pitching Mechanics Video Analysis by Trevor himself - Daily Throwing Programs for consistent progress - Command-Tracking Tools to master the strike zone - Daily Health Tracking for optimal recovery and peak performance - Professional grade strength, conditioning, and recovery programming - Custom daily nutrition programs to help you fuel and recover - AI coaching trained on what makes you perform your best - Pitching Journals to track your growth Memberships For Every Level Of Pitcher ROOKIE BALL — Master the fundamentals: - Daily Throwing Program: Trevor’s top drills for beginners - Strength & Conditioning Exercises: the best movements for throwers - Recovery Techniques to protect your arm after throwing - Nutrition Guidelines to learn to fuel your body correctly - Bullpen Coach to track and improve your command - Daily Health Tracker to improve your training readiness AA — Follow a structured development plan Everything in Rookie Ball, plus: - Daily Throwing Program with recommended drills, volumes, and intensities to help you throw harder with less pain - Strength & Conditioning Plan: weekly workouts to get you bigger, faster, and stronger for better results on the field - Comprehensive Mobility Routines: daily flows to prime your body for peak performance - Post Throw Recovery Program to expedite recovery after an outing and protect against injury - Adjustable Nutrition Plan: eat what sounds best without compromising your nutrition goals AAA — Custom programs based on your body, preferences, and progress Everything in AA, plus: - Complete Movement Analysis: a personalized breakdown of your pitching mechanics and functional movements in the weight room - Custom Throwing and Strength Programs built on your movement analysis and specific goals - Integrated Daily Health Tracker: your programs update automatically based on your readiness score, so you get the most out of every workout - AI Coaching: our AI model monitors your progress and updates your programs to get you the best results in the shortest time - Optimized Nutrition Plan: set daily and weekly schedules and your plan updates automatically, so you get the right fuel at the right time PRO — Direct access to professional coaching Everything in AAA, plus: - Weekly Zoom calls with Trevor, Tim, and the other Pro members - Private Discord access for 24/7 support - Direct coaching on pitch design, mental game, in-game strategy, sleep and recovery optimization, and more * Strength Program available for athletes 14 years and older. 4APP Sports is redefining the way pitchers train and recover. Used by pitchers at every level—from T-Ball to the Big Leagues—4APP provides the tools, insights, and guidance to help you unlock your full potential. What are you waiting for? Join thousands of pitchers already transforming their game. Download 4APP Sports today and start your journey to the top of the mound! Terms of Use: https://www.4appsports.com/terms
Screenshots
Verdict
The clearest difference is monetization model: Mustard at free with in-app purchases against 4APP Sports's subscription. Mustard also leads on rating (4.7 vs 4.4) and review sentiment (83% vs 67%). 4APP Sports's advantage is ads (none vs shown). On price, ratings volume, update cadence 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. Mustard sells 10 in-app purchases, starting at $7.99 per month and 4APP Sports sells 9 in-app purchases, starting at $99.00 per month. Whichever you choose, the download price is not the number that matters.
Mustard holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 217 and 201 respectively. Written reviews point the same way: 83% of Mustard's written reviews are positive against 67% of 4APP Sports's.
Mustard ships an update every 5 weeks, 4APP Sports every 3 weeks. Both last shipped on November 11, 2026.
| Parameter | Mustard | 4APP Sports |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (217 ratings) — better | 4.4 (201 ratings) |
| Positive reviews | 83.3% of reviews — better | 66.7% of reviews |
| Number of ratings | 217 — better | 201 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 180 MB | 344 MB |
| Age rating | 4+ | 4+ |
| Developer | QualiaOS, Inc. | 4APP Sports LLC |
Customer experience
Mustard
4APP Sports
User reviews
Mustard
From 217 App Store ratingsWhat we love
- 💡 Game-changer for pitching development
- 👍 Easy to use and navigate
- 🚀 Instant analytics and feedback
- 👍 Provides valuable drills
- 🤝 Great product and service
Room to improve
- 💰 Free version is worthless
- 👎 Expensive, not user-friendly
- 💸 Hidden costs for family plan
- 📉 App quality has degraded
- ⏳ Free version offers no value
4APP Sports
From 201 App Store ratingsWhat we love
- 👍 Helps improve pitching performance
- 👍 Detailed training plans
- 👍 Great for arm care and strength
- 👍 Provides valuable insights
- 👍 Helps build arm strength
Room to improve
- 💰 High monthly cost
- 💰 Too expensive for many
- 💰 Significant cost for premium features
- 🐛 Frequent communication errors when saving
- 🐛 App won't open
Bugs and requests
Mustard
Reported bugs
2 issues- Stats not loading
- Performance degraded
Requested features
3 requests- Provide more value in free version
- Improve user-friendliness
- Clarify family plan pricing
4APP Sports
Reported bugs
6 issues- Communication error when saving records
- App won't open
- Cannot click on premium subscription
- Membership issues
- Age restriction prevents sign-up for minors
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- Cannot access arm readiness feature
Requested features
3 requests- 日本語版も導入して欲しいです (Add Japanese version)
- 日本語バージョンができるようにして欲しいです (Request Japanese version)
- Add Japanese language support
In-app purchases
Mustard
- Monthly Premium Access$7.991 Month
- Sponsorship 1 Athlete Monthly$7.991 Month
- Mustard: Athlete$19.991 Month
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- Mustard: Family$22.991 Month
- 3 Athletes Monthly$23.991 Month
- 5 Athletes Monthly$39.991 Month
- Mustard: Team Lite$49.991 Month
- Mustard: Athlete$99.991 Year
- Mustard: Team$149.991 Month
- Mustard: Family$219.991 Year
4APP Sports
- Double-A Monthly$99.001 Month
- Double-A 3 Months$269.003 Months
- Triple-A Monthly$549.001 Month
Show 5 moreShow fewer
- Double-A Annual$900.001 Year
- Triple-A 3 Months$1499.993 Months
- Pro 3 Months$2999.003 Months
- Triple-A Annual$5199.991 Year
- Pro 6 Months$5399.996 Months
- Mechanical Analysis$199.99








