# Proper Scanner vs Unit Converter

The clearest difference is in-app purchases: Proper Scanner at none against Unit Converter's 2. Unit Converter's advantage is update cadence (daily vs every 6 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Unit Converter sells 2 one-off in-app purchases. Proper Scanner asks for nothing beyond the download.

Proper Scanner ships an update every 6 months, Unit Converter daily. The most recent releases landed on October 2, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Proper Scanner | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 55 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MCDYLAN PROPER ENTERPRISE](https://appshunter.io/developer/1534250903) | [Farid Fakhnavar](https://appshunter.io/developer/1692223826) |

## What reviewers say

### Proper Scanner

[App page](https://appshunter.io/ios/app/proper-scanner/id1596434210)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-fromto/id6738796120)

This versatile tool simplifies daily tasks by offering quick and reliable conversions for over 20 unit types. Its clean, intuitive interface makes converting measurements easy for students, professionals, and travelers alike. Enjoy offline functionality and a lightweight design that won't drain your device's resources.

**Highlights:** Over 20 unit categories, Length, weight, volume, temperature, speed, time, energy, pressure conversions, Real-time currency exchange rates, User-friendly interface, Lightweight and fast performance, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Sale | $6.99 | one-time |
| Lifetime Pro | $9.99 | one-time |


## Frequently asked questions

### Is Proper Scanner free?

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

### Is Unit Converter free?

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

### Do Proper Scanner or Unit Converter have ads?

Neither Proper Scanner nor Unit Converter shows ads.

### Which is updated more often, Proper Scanner or Unit Converter?

Proper Scanner ships an update every 6 months, and Unit Converter daily. Most recently, Proper Scanner was updated on October 2, 2026 and Unit Converter on October 18, 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.*