Slopegraide 4+

3D Green Reader/Visual Trainer

Jeffrey David Golf, LLC

    • 4.2 • 20 Ratings
    • Free
    • Offers In-App Purchases


Read putts like the pros with Slopegraide, your personal training app for green reading and putting!  

Our app uses a combination of physics and geometry to show you approximately where to aim and how soft or firm to hit your putt!

No more greens books or arrows to sort through.

Consistently misreading the break and speed of putts is now a thing of the past. Build your confidence in your green reading and putting, take advantage of the great shots you hit on the green, and create breakthroughs in your game!


• *NEW Course Mode - Sharpen your visualization skills with our new revolutionary, patent pending, virtual ball rolling simulator that displays 3D greens from any course in our database in life-sized form in augmented reality, allowing you to see how balls will break as if you are standing right there on the green! You can set the hole location anywhere on the green, see how many paces the pin is from the edges of the green, roll virtual balls on different green speeds, and experience how they interact with the hole and/or flagstick.

• **NEW and IMPROVED Slopegraide AR - Quickly roll virtual balls and capture slope measurements with a single tap and see exactly how your putt will break in augmented reality!

• *NEW 3D Putt Model - Displays a 3D animated rolling model of any putt inside 30 feet in augmented reality, giving you a 1st person point-of-view (POV) angle showing you the rolling arc of your putt and distance timelines that help you visualize the rolling speed of putts.

• *Roll Maps - Our popular color-coded charts that trains your distance control and feel on the greens quickly. Contains both a Training Mode and Tournament Mode that conforms to the Rules of Golf.

• *Putting Stroke Model - Displays an animated visual model of an optimal putting stroke for any putt inside 100 feet, complementing reads of your putts with speed control at the press of a button.

• *Life-Sized Putting Stroke Model (iPads only) - Our putting stroke model with the golf ball and putter enlarged to their life size, so you can follow the putter being animated on the screen, giving you an accelerated path to hitting putts at optimal speed!

• *Classic Mode - Displays recommended start lines based on conservative or aggressive putting styles. This feature accommodates players that prefer to hit putts at dead weight and players that like to aggressively run putts past the hole.

• Four Display Modes to accommodate any green reading style:

- Slope Percentage
- *Recommended start Lines displayed in inches or feet (Imperial)
- *Recommended start Lines displayed in centimeters or meters (Metric)
- Slope Degrees

• *Displays Backstroke Length that tells you how far back to take your putter to create optimal speed of your putts every single time

• *Customizable Putt Tempo - Find the putting stroke pace (46 bpm to 85 bpm) that works best for you!

• *Our Slopegraide smart ball marker can be used with your Apple Watch without having your iPhone nearby!

• *Uphill / Downhill support up to 1 foot each way

• *Supports green speeds between 6 and 15 on the Stimpmeter (incremented by 0.5)

• Trains the four most important elements; green reading, start line, speed control, and visualization; improving your putting in just a few minutes!

*An annual Slopegraide Premium in-app subscription are required for full functionality of this app. Please go to to purchase your ball marker.

** Slopegraide AR requires an annual Slopegraide Premium in-app subscription and requires LiDAR that is supported by only the following devices: iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, iPhone 15 Pro Max, iPad Pro devices from 2020 and later.

What’s New

Version 3.0.7

In this minor release, we have provided FREE access to the first 3 holes from each course in Course Mode to provide new users with an upgraded evaluation experience of Course Mode and the massive value it provides! We also addressed some misreads (bug fixes) and improved some lies on the greens (improvements).

Ratings and Reviews

4.2 out of 5
20 Ratings

20 Ratings

Zanziloo ,

Putt like Bryson - Worth 3x+ the Cost

I rarely leave app reviews, but this app deserves it. I’ve been a pretty good golfer my whole life, with a handicap as low as a 2. I’ve always considered myself a good green reader. I’ve unlocked so much more with this app. I was recently struggling with speed control and found this app after watching a few videos of Bryson discussing his putting philosophy. I found this app, started working with the roll maps feature, and now I’ve mostly memorized how far to take the putter back for various distances. I now can walk up to a 27 foot putt with 3 inches of downhill and think to myself “I need to take the putter head back about 14 inches, or about 4 inches outside my right foot.” I’ve also recently started using aimpoint, and this app has some great features for how much putts will break. 6 footers feel automatic. It’s incredible!

Jshfilms2016 ,

This app and Roll Maps will change your putting forever.

I recently heard about this app and Roll Maps a while back ago. I’ve always been a decent putter in golf since I was 4 years old and played in high school. Roll maps and this app had been a game changer for my putting and my pre shot routine. I don’t know where I would be without it. Thank you for creating such an amazing app and Roll Maps to go with it.

MWgolfer2016 ,

Never Forget This App When Practicing Your Putting!

This app has changed the way I look at green reading and making putts as a competitive golfer! Especially with the latest update in 2021 with speed, slope, & directional information all at once I can confidently know I’m reading and pacing my putts properly to get the most feedback out of my practice sessions! The new “ballmarker” mode changed the versatility big time for this product!

App Privacy

The developer, Jeffrey David Golf, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

You Might Also Like

Percent Slope: Golf Green Read
StrackaLine - Golf Putting
Tour Read Golf
PuttView Books
GreenMap AR Putt Reader