# Green Slope vs Windy Golf

The clearest difference is price: Windy Golf at Free against Green Slope's $9.99. Green Slope's advantage is in-app purchases (none vs 3). On rating, ratings volume, update cadence and ads there is nothing between them.

Windy Golf is free to download; Green Slope costs $9.99 up front. Windy Golf sells 3 in-app purchases, starting at $0.99 per month. Green Slope asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Green Slope against 5.0 for Windy Golf. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on August 17, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Green Slope | Windy Golf |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/green-slope/id6449557935/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/windy-golf/id6736354941/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 7 MB | 16 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gordon Thomson](https://appshunter.io/developer/1460719625) | [Hormazd Romer](https://appshunter.io/developer/1771598898) |

## What reviewers say

### Green Slope

[App page](https://appshunter.io/ios/app/green-slope/id6449557935)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Windy Golf

[App page](https://appshunter.io/ios/app/windy-golf/id6736354941)

This app provides real-time wind calculations and GPS data to help golfers adjust their shots and lower scores. It features dynamic wind adjustments, a live activity tracker, and score history synchronization. Choose your preferred units and weather sources for a personalized experience.

**Highlights:** Dynamic wind calculations, Real-time compass, Lightweight GPS for distance measurement, Score history synchronization, Manual wind adjustment, Live activity tracker, Imperial/Metric unit options

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Birdie Annual | $6.99 | per year |
| Lifetime | $129.00 | one-time |


## Frequently asked questions

### Is Green Slope free?

Green Slope costs $9.99, with no in-app purchases.

### Is Windy Golf free?

Windy Golf is free to download, with in-app purchases available.

### Which has better reviews, Green Slope or Windy Golf?

Green Slope and Windy Golf are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Green Slope or Windy Golf have ads?

Neither Green Slope nor Windy Golf shows ads.

### Which is updated more often, Green Slope or Windy Golf?

Green Slope ships an update every 2 weeks, and Windy Golf every 2 weeks. Most recently, Green Slope was updated on August 17, 2026 and Windy Golf on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*