Putt Maker vs Green Slope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Putt Maker
This app helps golfers master green reading by using device sensors to reveal hidden slopes and contours. Visualize break direction and severity to plan your putts with confidence and improve your game.
- Gyroscope-based slope detection
- Precision needle indicator for slope direction
- Color-coded ring for break severity
- Real-time topography measurements
- Customizable artistic golf course backgrounds
- AI-generated unique backgrounds
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Reading the break of a green is the skill that separates the pro golfers from the amateurs. Unfortunately, many greens are deceptive, appearing to break and then not or appearing level and then breaking. PuttMaker helps you master this critical skill, make more putts, and lower your golf score. Master Green Reading Like a Pro Using PuttMaker is simple yet powerful. Leveraging your device's advanced gyroscope, PuttMaker reveals the hidden contours of the green that your eyes can't see. Place your device on the green and instantly see: • The exact direction of the slope with a precision needle indicator • The severity of the break with a color-coded ring (green for subtle breaks, red for extreme slopes) • Real-time measurements that give you the complete picture of the green's topography Take one measurement or several to map the entire putting surface and plan your line with confidence. Beautiful, Customizable Backgrounds Practice doesn't have to be boring. Choose from stunning golf course backgrounds in four styles—Sketch, Animation, Illustration, or Photorealistic—each available in light and dark themes, with several scenes per style so you get a fresh view every time you open the app. Free to Use, Easy to Upgrade PuttMaker is completely free to download and use, supported by discreet banner ads. For an uninterrupted, ad-free experience, upgrade with a one-time $0.99 purchase. Already own PuttMaker? If you purchased the app before it became free, you've been automatically upgraded to the premium ad-free version at no additional cost—our way of thanking our loyal supporters. Perfect For • Weekend golfers looking to improve their putting • Serious players seeking a competitive edge • Golf enthusiasts who want to understand green reading • Anyone tired of three-putting Lower your scores. Read greens like a pro. Download PuttMaker today.
Green Slope
This training aid helps golfers visualize and understand putts by measuring green slope and predicting break. It uses device sensors to assess orientation and attitude, then provides graphical overviews and adjustable aimpoint tables.
- Measures green slope
- Predicts putt break and aimpoint
- Adjustable aimpoint tables
- Graphical overviews of putts
- Uses device motion sensors
- Configurable green speed and pin direction
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"Green Slope" measures the slope and then predicts the break and aimpoint required for a putt. It's intended as a training aid, providing assistance with visualization and understanding of putts. Set the green speed, select pin direction, place the device on ground for three seconds, and read your putt. Using the internal iPhone and iPad motion sensors to assess the device orientation and attitude, the App measures slopes across and along the line of the putt. The estimated Fall Line direction and slope are then used to predict the likely break. Standard 'Aimpoint', 'Plays As', 'Fingers' and other tables are available from the menu. These can be adjusted for slopes, Stimp, past hole distance, and other parameters. The app then provides graphical overviews of selected putts with optional configurations. Since many phones have one or more camera lenses on the back preventing accurate slope measurements, Green Slope has been designed to be used with the phone is face down or face up on the green. Comprehensive help on app use is available from the menu button.
Screenshots
Verdict
The clearest difference is review sentiment: Green Slope at 100% against Putt Maker's 50%. Green Slope also leads on rating (5.0 vs 3.7) and in-app purchases (none vs 1). Putt Maker's advantage is price (Free vs $9.99). On ratings volume 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
Putt Maker is free to download; Green Slope costs $9.99 up front. Putt Maker sells 1 one-off in-app purchase. Green Slope asks for nothing beyond the download.
Green Slope holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 50% of Putt Maker's written reviews are positive against 100% of Green Slope's.
Putt Maker ships an update every 10 months, Green Slope every 2 weeks. The most recent releases landed on October 4, 2026 and September 28, 2026 respectively.
| Parameter | Putt Maker | Green Slope |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 3.7 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 10 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported — better | Paid |
| Best chart rank | — | #200 — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 18 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | DigitalSandbox | Gordon Thomson |
Customer experience
Putt Maker
Green Slope
In-app purchases
Putt Maker
- Remove Ads$0.99
Green Slope
No in-app purchases









