# QM Secure vs Unit Converter

The clearest difference is rating: Unit Converter at 5.0 against QM Secure's 1.0. Unit Converter also leads on update cadence (every 2 days vs every 18 months). QM Secure's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Unit Converter holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

QM Secure ships an update every 18 months, Unit Converter every 2 days. The most recent releases landed on July 27, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | QM Secure | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (3 ratings)](https://appshunter.io/ios/app/qm-secure/id672306164/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-any-unit/id6758352171/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 1 MB | 32 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Questionmark Computing Limited](https://appshunter.io/developer/538427522) | [George Corbin](https://appshunter.io/developer/1791667847) |

## What reviewers say

### QM Secure

[App page](https://appshunter.io/ios/app/qm-secure/id672306164)

This secure browser is designed for taking online tests and exams. It prevents cheating by disabling features like task-switching and screen captures, ensuring a fair assessment environment.

**Highlights:** Secure testing environment, Prevents cheating, Disables task-switching, Blocks screen captures, Protects content integrity, Supports online exams

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-any-unit/id6758352171)

This tool simplifies unit conversions for various measurements like length, weight, and temperature. It offers instant, precise results with a clean interface, making it ideal for students, professionals, and everyday users needing quick calculations.

**Highlights:** Converts length, weight, temperature, time, speed, area, volume, Handles scientific units, Instant and precise results, Clean and easy-to-use interface, Smart calculator for complex problems, Saves time and reduces errors

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QM Secure free?

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

### Is Unit Converter free?

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

### Which has better reviews, QM Secure or Unit Converter?

Unit Converter is rated higher. QM Secure averages 1.0 out of 5 from 3 ratings, while Unit Converter averages 5.0 from 1 ratings.

### Do QM Secure or Unit Converter have ads?

Neither QM Secure nor Unit Converter shows ads.

### Which is updated more often, QM Secure or Unit Converter?

QM Secure ships an update every 18 months, and Unit Converter every 2 days. Most recently, QM Secure was updated on July 27, 2026 and Unit Converter on July 9, 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.*