TheStack | Speed Trainer | Award Winning App

The #1 speed training system in golf. Raise your speed ceiling and lower your scores with personalized training programs, guided workouts, and effortless data entry powered by TheStack App. Start training smarter to make more birdies, have more fun, and play your best golf.

TheStack Hardware

• 5 milled Stack weights enable 30 weight combinations between 0g and 300g
• Dual-purpose weight case / phone stand
• Highly engineered training club - Adult (41.5") or Junior (38.5") version (see Fitting Juniors)
• Stack training requires a speed device that can measure swings without ball impact.  We recommend bundling with Stack Radar (Bluetooth connectivity).  View all compatible devices here.
  

TheStack App Training

Rated 4.9 with 5,500+ Reviews on App Store

• Includes 1-Year Membership to TheStack App
  • Now on iOS, Android (Beta), and Chrome Web (Beta)
• Adaptive speed training formulated by Dr. Sasho MacKenzie
• Guided workout timer for reps, sets, and rest intervals
• Custom speed metrics to track your gains
• Bluetooth Connectivity to integration devices.  Hands-free data entry using voice entry technology for non-integrated devices
• Membership includes Bundled access to Stack Putting (iOS), Stack Wedging (iOS), and the Learning Library (All Platforms)
• Train and track up to twenty local (i.e. family) users under one login.  App works with Family Sharing so the entire family can train easily on separate devices
  
• Connect to any other Stacker using Share Codes
• Are you a Coach?  Learn about our Coaches License 

Platform Availability

iOS: Access TheStack App from the App Store when your order arrives. Requires iOS 15.0 or newer. Access Speed, Wedging, Putting, and the Learning Library. 

Android & Web (Beta): Install TheStack App from the Google Play Store or access it on Chrome Web when your order arrives. Access Speed + Learning Library today; Wedging + Putting coming in a future update.

See our FAQ pages for questions about membership access.

* Speed radar not included, view all compatible devices here