# OpenGL ES Reference vs Hear2Rise

The clearest difference is rating: Hear2Rise at 4.0 against OpenGL ES Reference's 3.0. OpenGL ES Reference's advantage is review sentiment (67% vs 50%) and iOS requirement (8.1 vs 13). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Hear2Rise holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews complicate that: 67% of OpenGL ES Reference's written reviews are positive against 50% of Hear2Rise's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | OpenGL ES Reference | Hear2Rise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/opengl-es-reference/id1056915836/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/hear2rise/id1162237802/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | Free |
| Size | 22 MB | 25 MB |
| Requires iOS | **8.1** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saumya Lahera](https://appshunter.io/developer/921732703) | [HIPOINT INC](https://appshunter.io/developer/1114714055) |

## 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


### Hear2Rise

[App page](https://appshunter.io/ios/app/hear2rise/id1162237802)

This app uses audio-only flashcards for learning. Dictate challenges and responses to create study decks for languages, math, and more. Features cloud syncing, sharing, and auto-play for hands-free learning.

**Highlights:** Audio-only flashcards, Dictate challenges and responses, Cloud syncing across devices, Share decks with friends, Auto-play with shuffle and loop, Mastery level tracking

**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 Hear2Rise free?

Hear2Rise is free to download, with no in-app purchases.

### Which has better reviews, OpenGL ES Reference or Hear2Rise?

Hear2Rise is rated higher. OpenGL ES Reference averages 3.0 out of 5 from 3 ratings, while Hear2Rise averages 4.0 from 3 ratings.

### Do OpenGL ES Reference or Hear2Rise have ads?

Neither OpenGL ES Reference nor Hear2Rise 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.*