# Objective C vs OpenGL ES Reference

The clearest difference is review sentiment: OpenGL ES Reference at 67% against Objective C's 13%. OpenGL ES Reference also leads on price (Free vs $0.99) and iOS requirement (8.1 vs 16.4). On ads, in-app purchases and device support there is nothing between them.

OpenGL ES Reference is free to download; Objective C costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Objective C | OpenGL ES Reference |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.0 (3 ratings)](https://appshunter.io/ios/app/opengl-es-reference/id1056915836/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 13.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Monetization | Paid | **Free** |
| Size | 36 MB | 22 MB |
| Requires iOS | 16.4 | **8.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Loop Development Ltd](https://appshunter.io/developer/463823475) | [Saumya Lahera](https://appshunter.io/developer/921732703) |

## What reviewers say

### Objective C

[App page](https://appshunter.io/ios/app/objective-c/id608199745)

Learn Objective C programming by writing and running code directly on your iPhone or iPad. Compile and execute your programs on a remote server, with results displayed instantly on your device. Ideal for experimenting with code snippets and mastering this powerful language.

**Highlights:** Write Objective C code, Compile and run programs, Remote execution, View output on device, Learn programming language

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Objective C free?

Objective C costs $0.99, with no in-app purchases.

### Is OpenGL ES Reference free?

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

### Do Objective C or OpenGL ES Reference have ads?

Neither Objective C nor OpenGL ES Reference 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.*