Andrew Long
GreenKit app icon

iPhone · Sports

GreenKit

Putting practice toolkit with slope reading for iOS.

Download on the App Store$0.99 · iOS 26.2+ · Version 1.0
GreenKit screenshot
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I built GreenKit to make putting practice more structured and a little more useful.

I built GreenKit because putting practice can easily become too unstructured. Golfers know it matters, but they do not always have simple tools that make practice feel more targeted or more informative.

The slope-reading side of the app is a big part of that. I wanted golfers to be able to get a clearer sense of tilt and break in a way that feels quick and practical on a phone.

GreenKit is another example of the kind of product I like building: something narrow, useful, and grounded in a real golf habit instead of trying to become an all-purpose golf platform.

What it does

  1. 1

    Use slope-reading tools to better understand green tilt and break.

  2. 2

    Support putting practice with a focused toolkit instead of a generic golf app.

  3. 3

    Use motion-based measurements to make practice more concrete.

  4. 4

    Keep training features in one clean mobile workflow.

Who it's for

Golfers who want a practical putting toolkit for practice sessions, green reading, and training drills.

How it's built

I built GreenKit as a SwiftUI iPhone app that uses CoreMotion and a focused toolset to support slope reading and other putting-related practice features.

  • SwiftUI
  • iOS
  • CoreMotion

Why it matters

Putting is one of the biggest separators in golf, but it is also an area where practice can become vague or repetitive. GreenKit is meant to give golfers a few simple tools that make practice feel more intentional.

Support

Questions, bugs, or feature ideas? I read every message.

greenkit@andrewlong.com

Privacy

Privacy-first by design. No account needed.

Read the privacy policy

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