# OpenGL ES Reference vs CloudLabs Gemstone cutting

OpenGL ES Reference and CloudLabs Gemstone cutting are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | OpenGL ES Reference | CloudLabs Gemstone cutting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/opengl-es-reference/id1056915836/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Free | — |
| Size | 22 MB | 102 MB |
| Requires iOS | **8.1** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Saumya Lahera](https://appshunter.io/developer/921732703) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### OpenGL ES Reference

[App page](https://appshunter.io/ios/app/opengl-es-reference/id1056915836)

This app provides offline access to detailed descriptions of all OpenGL ES commands and functions from the official Khronos Group website. It's designed to help developers easily reference graphics API information, even for beginners.

**Highlights:** Complete OpenGL ES 3.2 command descriptions, Information from official Khronos Group website, Offline access, Systematic function listing, Search bar and index, Landscape mode support

**Features:** macOS Compatibility

**In-app purchases:** none


### CloudLabs Gemstone cutting

[App page](https://appshunter.io/ios/app/cloudlabs-gemstone-cutting/id1637492925)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenGL ES Reference free?

OpenGL ES Reference is free to download, with no in-app purchases.

### Is CloudLabs Gemstone cutting free?

CloudLabs Gemstone cutting is free to download, with no in-app purchases.

### Do OpenGL ES Reference or CloudLabs Gemstone cutting have ads?

Neither OpenGL ES Reference nor CloudLabs Gemstone cutting shows ads.

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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.*