# Simple Temperature vs QR Reader * Barcode Scanner

The clearest difference is price: QR Reader * Barcode Scanner at Free against Simple Temperature's $0.99. QR Reader * Barcode Scanner also leads on update cadence (weekly vs every 12 months). Simple Temperature's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

QR Reader * Barcode Scanner is free to download; Simple Temperature costs $0.99 up front. QR Reader * Barcode Scanner sells 3 in-app purchases, starting at $0.99 per 7 days. Simple Temperature asks for nothing beyond the download.

Simple Temperature ships an update every 12 months, QR Reader * Barcode Scanner weekly. The most recent releases landed on September 30, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Simple Temperature | QR Reader * Barcode Scanner |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/simple-temperature/id977935395/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | Paid | — |
| Size | 1 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Palmer](https://appshunter.io/developer/914507761) | [ONLINE CLINIC YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/1764740453) |

## What reviewers say

### Simple Temperature

[App page](https://appshunter.io/ios/app/simple-temperature/id977935395)

Easily convert temperatures between Fahrenheit and Celsius with this straightforward utility. Simply input a value and tap to see the converted result instantly. It's designed for speed and simplicity.

**Highlights:** Fahrenheit to Celsius conversion, Celsius to Fahrenheit conversion, Instant conversion on tap, Simple user interface, Fast performance

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

**In-app purchases:** none


### QR Reader * Barcode Scanner

[App page](https://appshunter.io/ios/app/qr-reader-barcode-scanner/id6758448471)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Pro Weekly | $0.99 | per 7 days |
| QR Pro Monthly | $2.99 | per month |
| QR Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is Simple Temperature free?

Simple Temperature costs $0.99, with no in-app purchases.

### Is QR Reader * Barcode Scanner free?

QR Reader * Barcode Scanner is free to download, with in-app purchases available.

### Do Simple Temperature or QR Reader * Barcode Scanner have ads?

Neither Simple Temperature nor QR Reader * Barcode Scanner shows ads.

### Which is updated more often, Simple Temperature or QR Reader * Barcode Scanner?

Simple Temperature ships an update every 12 months, and QR Reader * Barcode Scanner weekly. Most recently, Simple Temperature was updated on September 30, 2026 and QR Reader * Barcode Scanner on September 10, 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.*