# Calculator Plus vs QR Barcode Scanner Reader

The clearest difference is price: QR Barcode Scanner Reader at Free against Calculator Plus's $3.99. Calculator Plus's advantage is in-app purchases (none vs 3) and iOS requirement (15 vs 17.0). On update cadence, ads and device support there is nothing between them.

QR Barcode Scanner Reader is free to download; Calculator Plus costs $3.99 up front. QR Barcode Scanner Reader sells 3 in-app purchases, starting at $4.99 per month. Calculator Plus asks for nothing beyond the download.

Calculator Plus ships an update every 5 weeks, QR Barcode Scanner Reader every 2 months. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Calculator Plus | QR Barcode Scanner Reader |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.9 (694 ratings)](https://appshunter.io/ios/app/calculator-plus-pro/id978091416/reviews)** | — |
| Number of ratings | **694** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 3 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DigitAlchemy LLC](https://appshunter.io/developer/376971628) | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) |

## What reviewers say

### Calculator Plus

[App page](https://appshunter.io/ios/app/calculator-plus-pro/id978091416)

This app simplifies everyday math with a clean interface and a history of all your calculations. Easily handle basic operations, percentages, and more, with the ability to review past entries for quick reference. It's designed for efficient problem-solving on the go.

**Highlights:** Clear, readable calculation display, Basic arithmetic and percentages, Backspace for error correction, Memory buttons and calculation history, Light and dark themes, Advanced functions (squaring, square root, pi)

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Large, clear numbers
- 👍 Intuitive interface
- 👍 Reliable performance
- 👍 Convenient features (e.g. history, memory)

**What reviewers complain about**

- 🐛 Occasional clicking sound issue
- 🔋 Potential battery drain

**Reported bugs**

- Clicking sound not removable
- Compatibility issues on older devices

**Requested features**

- Dark mode option
- Algebraic order of operations
- Customizable color schemes


### QR Barcode Scanner Reader

[App page](https://appshunter.io/ios/app/qr-barcode-scanner-reader/id6764745638)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $29.99 | per year |
| Pro Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Calculator Plus free?

Calculator Plus costs $3.99, with no in-app purchases.

### Is QR Barcode Scanner Reader free?

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

### Do Calculator Plus or QR Barcode Scanner Reader have ads?

Neither Calculator Plus nor QR Barcode Scanner Reader shows ads.

### Which is updated more often, Calculator Plus or QR Barcode Scanner Reader?

Calculator Plus ships an update every 5 weeks, and QR Barcode Scanner Reader every 2 months. Most recently, Calculator Plus was updated on October 15, 2026 and QR Barcode Scanner Reader on October 6, 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.*