78
BU Score
Strong
The Stack System
✍️ BU Analytics Review
“
The Stack System is an iOS app from The Stack System, LP in the Health & Fitness category, currently rated 4.9★ across 6,767 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 78 — Strong (healthy traction). For a Health & Fitness app, that means healthy traction.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 10 of 10 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| subscriptionREVIEW | +$2,500 | |
| Excellent rating (4.9★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| Low install base (6,767 ratings)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| free trialREVIEW | +$1,200 | |
| support teamREVIEW | +$900 | |
| Established app (5y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Nov 24
Jan 25
Feb 25
Mar 25
Apr 25
May 25
Jun 25
Sep 25
Nov 25
Dec 25
Jan 26
Mar 26
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 149 MB🔞 4+📱 iOS 15.0+🔖 v1.30.1🔄 updated 1w ago🌐 EN, JA📂 Health & Fitness💰 Paid🚀 Launched 2021 (5y old)
📝 About this app
The Award-Winning App for golf enthusiasts is now even better. Stack your most important golf skills and enjoy longer drives, closer wedges, and fewer putts. TheStack App has 3 main modes: Speed Training, Wedging, and Putting.
STACK SPEED TRAINING ($99/year) powers distance gains through customized, variable inertia speed training - the most efficient way for a golfer to increase their clubhead speed. Includes full access to all app features: Stack Putting, Wedging, and the Learning Library. TheStack hardware is required.
STACK WEDGING (30-day free trial, $59/year) delivers a science-based approach to improving your distance control from 140 yards and in. Practice sessions automatically adapt to your skill level for maximum effectiveness. The Stack Radar is required for this feature.
STACK PUTTING (30-day free trial, $59/year) is like having a Tour putting coach in your pocket. Gamified sessions and deep analytics help you make more putts.
**STACK WEDGING OVERVIEW**
Stack Wedging uses a science-based approach to sharpen distance control from 140 yards and in. After a Baseline session, the app creates personalized, gamified practice. In Premier Mode, the App calls out distances and scores you in real-time using our proprietary scoring system based on Strokes Gained data. See how your wedges Stack up with 35 increasingly difficult challenge levels and dozens of valuable insights to help you start wedging it closer.
Creative Mode lets you design your own wedge combines, customize clubs, targets, rounds, and challenge friends in real-time with the Compete feature.
**STACK PUTTING OVERVIEW**
Stop wasting time on the putting green. With focused 15-minute putting sessions, Premier Mode guides you through 18 realistic holes. Enter data easily via Voice or Pocket Mode. Track performance with spider charts, shot plots, and bar graphs. Compare against peers by handicap and get insights into your putting strengths and weaknesses.
Creative Mode lets you build your own putting combines or choose from popular presets. Ideal for indoor greens or focusing on specific putting skills.
On Course Mode provides detailed putting analytics from real play. Record Aimpoint data and more with better granularity than ShotLink.
**STACK SPEED TRAINING**
Over 55,000 golfers of all skill levels and handicaps have enjoyed customized variable inertia speed training, which is the most efficient way for a golfer to increase their clubhead speed. Speed training algorithms power customized dynamic programming borne from years of research by leading sport scientist, Dr. Sasho MacKenzie.
To begin, you’ll need TheStack hardware and a compatible Speed Radar.
Payment is charged to your iTunes Account after purchase or trial. Subscriptions auto-renew unless canceled at least 24 hours before renewal. Manage auto-renewal in Account Settings. Unused trial time is forfeited upon purchase.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
STACK SPEED TRAINING ($99/year) powers distance gains through customized, variable inertia speed training - the most efficient way for a golfer to increase their clubhead speed. Includes full access to all app features: Stack Putting, Wedging, and the Learning Library. TheStack hardware is required.
STACK WEDGING (30-day free trial, $59/year) delivers a science-based approach to improving your distance control from 140 yards and in. Practice sessions automatically adapt to your skill level for maximum effectiveness. The Stack Radar is required for this feature.
STACK PUTTING (30-day free trial, $59/year) is like having a Tour putting coach in your pocket. Gamified sessions and deep analytics help you make more putts.
**STACK WEDGING OVERVIEW**
Stack Wedging uses a science-based approach to sharpen distance control from 140 yards and in. After a Baseline session, the app creates personalized, gamified practice. In Premier Mode, the App calls out distances and scores you in real-time using our proprietary scoring system based on Strokes Gained data. See how your wedges Stack up with 35 increasingly difficult challenge levels and dozens of valuable insights to help you start wedging it closer.
Creative Mode lets you design your own wedge combines, customize clubs, targets, rounds, and challenge friends in real-time with the Compete feature.
**STACK PUTTING OVERVIEW**
Stop wasting time on the putting green. With focused 15-minute putting sessions, Premier Mode guides you through 18 realistic holes. Enter data easily via Voice or Pocket Mode. Track performance with spider charts, shot plots, and bar graphs. Compare against peers by handicap and get insights into your putting strengths and weaknesses.
Creative Mode lets you build your own putting combines or choose from popular presets. Ideal for indoor greens or focusing on specific putting skills.
On Course Mode provides detailed putting analytics from real play. Record Aimpoint data and more with better granularity than ShotLink.
**STACK SPEED TRAINING**
Over 55,000 golfers of all skill levels and handicaps have enjoyed customized variable inertia speed training, which is the most efficient way for a golfer to increase their clubhead speed. Speed training algorithms power customized dynamic programming borne from years of research by leading sport scientist, Dr. Sasho MacKenzie.
To begin, you’ll need TheStack hardware and a compatible Speed Radar.
Payment is charged to your iTunes Account after purchase or trial. Subscriptions auto-renew unless canceled at least 24 hours before renewal. Manage auto-renewal in Account Settings. Unused trial time is forfeited upon purchase.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
🆕 What's New · v1.30.1
Introducing Practice Tracker — your new home for tracking, organizing, and understanding every swing.
Track:
• Carry Distance
• Ball Speed
• Club Speed
• Smash Factor
Filter by club and shot intent to compare your patterns over time.
New stats include:
• Avg
• Max
• Spread (your consistency range)
Learn what your data actually means with the new in-app Practice Guide cards.
Built for golfers who love numbers… and golfers who just want to get better.
Update now and start Tracking!
Track:
• Carry Distance
• Ball Speed
• Club Speed
• Smash Factor
Filter by club and shot intent to compare your patterns over time.
New stats include:
• Avg
• Max
• Spread (your consistency range)
Learn what your data actually means with the new in-app Practice Guide cards.
Built for golfers who love numbers… and golfers who just want to get better.
Update now and start Tracking!
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- The Stack System
- Developer
- The Stack System, LP
- Bundle ID
- com.thestacksystem.thestack
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, JA
Company
- Website
- www.thestacksystem.com
- Tagline
- The Stack System
- Description
- Golf speed training system used to biohack your clubhead speed. The Stack System unlocks precision speed training from golf's leading biomechanist, Dr. Sasho MacKenzie that was previously reserved for Tour players.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $34.6K/mo
- Top-grossing rank
- Outside top 100 in US Health & Fitness
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- https://twitter.com/TheStackSystem
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- facebook · instagram · twitter
- Not found
- Phone
- Not found
- Contact page
- https://www.thestacksystem.com/apps/help-center
- About page
- https://www.thestacksystem.com/pages/our-story
📈Ratings growth6,767 ratings+58% lifetimeShow 3-year history estimate ▾
Tracked (54 weeks) Pre-tracking estimate (35 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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