# Shift Unit vs QR Master

The clearest difference is in-app purchases: Shift Unit at none against QR Master's 2. QR Master's advantage is iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. QR Master sells 2 in-app purchases, starting at $9.99 per month. Shift Unit asks for nothing beyond the download.

## The numbers

| Metric | Shift Unit | QR Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (21 ratings)](https://appshunter.io/ios/app/shift-unit/id1514037983/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 20 MB | 68 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Didier Burton](https://appshunter.io/developer/1514037982) | [Melih Arik](https://appshunter.io/developer/1664743894) |

## What reviewers say

### Shift Unit

[App page](https://appshunter.io/ios/app/shift-unit/id1514037983)

This utility app offers precise unit and currency conversions with over 1400 units across 34 categories. It supports light/dark modes, home widgets, and an independent Apple Watch app. Features include a custom keypad with calculator mode and educational Wikipedia integration.

**Highlights:** 1400+ conversion units, 34 categories, Light/dark mode support, Home widget, Apple Watch app, Custom keypad with calculator, Wikipedia integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### QR Master

[App page](https://appshunter.io/ios/app/qr-master-scanner-generator/id6739949297)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $9.99 | per month |
| Lifetime Premium | $24.99 | one-time |


## Frequently asked questions

### Is Shift Unit free?

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

### Is QR Master free?

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

### Do Shift Unit or QR Master have ads?

Neither Shift Unit nor QR Master 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.*