TheStack Baseball vs The Bullpen Baseball Method
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TheStack Baseball
Enhance your baseball performance by increasing bat speed through dynamic, personalized training programs. Track your progress, connect with other players and coaches, and optimize your workouts for maximum gains. Requires a Stack Bat to begin.
- Dynamic training programs
- Personalized speed trainer
- Track speed and metrics
- Connect with other players
- Team monitoring for coaches
- Variable inertia speed training
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Biohack your Bat Speed so that you can swing faster & play better. From the team that brought you the Award-Winning Stack System loved by over 45,000 golfers, Dr. Sasho MacKenzie has now applied his years of speed research to create the most effective way to increase your bat speed. Players, Coaches, and Organizations across all levels of baseball can now systematically gain bat speed to hit the ball harder, farther, and have more success at the plate. What’s Inside TheStack Baseball App: * Dynamic Training Programs Customized variable inertia speed training (precision overload and overspeed) - the most efficient way to increase your bat speed. The App responds to your progress and continuously optimizes your training. The algorithms that power dynamic programming come from years of research by leading sports scientist, Dr. Sasho MacKenzie and insights from over 25 million swings from The Stack System golf’s solution. * Your Own Personal Speed Trainer Be guided through scheduled workouts while tracking Stack weight, rest, recovery, and performance gains. This information allows future workouts to be adjusted behind the scenes, so your training is optimized to maximize bat speed gains. * Track Speed, Share Metrics Seamless connection to the Stack Sensor, which is integrated into the TheStack Bat. Train anywhere, anytime. Track key performance metrics such as Stack Speed, Distance Potential, Bat Speed and Grit Score. Easily share your progress and gains. * Connect to Others Easily connect and follow other Stackers' progress and keep each other on track with your training. If you’re a Coach, add your whole team and monitor progress. *** To start speed training, you will need a Stack Bat. Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula
The Bullpen Baseball Method
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Download The Bullpen Baseball Method app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, check your profile and membership status, and more – all from your device. Visit https://thebullpen954.com/ to learn more.
Screenshots
Verdict
The clearest difference is ads: The Bullpen Baseball Method at none against TheStack Baseball's shown. On price, update cadence, in-app purchases and device support 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.
TheStack Baseball ships an update every 2 months, The Bullpen Baseball Method every 5 weeks. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.
| Parameter | TheStack Baseball | The Bullpen Baseball Method |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (53 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 53 — better | — |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 121 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | The Stack System Baseball GP, Inc. | SFB Baseball Development, LLC |
In-app purchases
TheStack Baseball
No in-app purchases
The Bullpen Baseball Method
No in-app purchases
Questions
Is TheStack Baseball free?
Is The Bullpen Baseball Method free?
Do TheStack Baseball or The Bullpen Baseball Method have ads?
Which is updated more often, TheStack Baseball or The Bullpen Baseball Method?
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