# GLview Mobile vs Turnit

The clearest difference is in-app purchases: GLview Mobile at none against Turnit's 4. GLview Mobile also leads on ratings volume (7 vs 2). Turnit's advantage is ads (none vs shown) and review sentiment (100% vs 70%). On price, update cadence, monetization model and device support there is nothing between them.

Both are free to download. Turnit sells 4 in-app purchases, starting at $0.49 per month. GLview Mobile asks for nothing beyond the download.

Turnit holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 70% of GLview Mobile's written reviews are positive against 100% of Turnit's.

GLview Mobile ships an update every 4 months, Turnit every 3 months. Both last shipped on October 2, 2026.

## The numbers

| Metric | GLview Mobile | Turnit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (7 ratings)](https://appshunter.io/ios/app/glview-mobile/id377636805/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/turnit-convert-everything/id1484892103/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 73 MB | 44 MB |
| Requires iOS | **12.0** | 12.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stephane Denis](https://appshunter.io/developer/295455703) | [Stanislav Jidkov](https://appshunter.io/developer/1484892102) |

## What reviewers say

### GLview Mobile

[App page](https://appshunter.io/ios/app/glview-mobile/id377636805)

This utility app provides detailed information about your device's graphics hardware, including OpenGL ES and Apple Metal capabilities. It offers access to extension documentation, shader information, and includes benchmark tests for various OpenGL ES versions. Useful for developers and those interested in comparing device performance.

**Highlights:** GPU hardware information reporting, OpenGL ES and Apple Metal capabilities, Access to extension documentation, Shader capabilities display, OpenGL ES benchmark tests, Cloud storage for OpenGL information

**In-app purchases:** none


### Turnit

[App page](https://appshunter.io/ios/app/turnit-convert-everything/id1484892103)

This app offers a comprehensive scientific unit converter with over 2600 units across 70+ categories. Users can create custom converters and units, view calculation details, and access a history of conversions. It works offline and prioritizes user privacy.

**Highlights:** 2600+ units across 70+ categories, Create custom converters and units, View calculation details, Works completely offline, History section for review, Significant digit control

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Donation | $0.49 | per month |
| Small Donation | $0.99 | one-time |
| Medium Donation | $1.99 | one-time |
| Large Donation | $2.99 | one-time |


## Frequently asked questions

### Is GLview Mobile free?

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

### Is Turnit free?

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

### Which has better reviews, GLview Mobile or Turnit?

Turnit is rated higher. GLview Mobile averages 4.7 out of 5 from 7 ratings, while Turnit averages 5.0 from 2 ratings.

### Do GLview Mobile or Turnit have ads?

GLview Mobile shows ads; Turnit does not.

### Which is updated more often, GLview Mobile or Turnit?

GLview Mobile ships an update every 4 months, and Turnit every 3 months. Most recently, GLview Mobile was updated on October 2, 2026 and Turnit on October 2, 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.*