# QR & Barcode Reader vs Scientific calculator Lite

The clearest difference is ads: Scientific calculator Lite at none against QR & Barcode Reader's shown. Scientific calculator Lite also leads on iOS requirement (13.0 vs 15.2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. QR & Barcode Reader sells 1 one-off in-app purchase and Scientific calculator Lite sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

QR & Barcode Reader ships an update every 2 weeks, Scientific calculator Lite fortnightly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | QR & Barcode Reader | Scientific calculator Lite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 38 MB | 24 MB |
| Requires iOS | 15.2 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SWAINFO SOLUTIONS](https://appshunter.io/developer/1650786446) | [Smit Pipaliya](https://appshunter.io/developer/1646406919) |

## What reviewers say

### QR & Barcode Reader

[App page](https://appshunter.io/ios/app/qr-and-barcode-reader/id6450925004)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Code - Scanner & Generator | $8.99 | one-time |


### Scientific calculator Lite

[App page](https://appshunter.io/ios/app/scientific-calculator-lite/id6463851192)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Calculator - Monthly | $9.99 | per month |


## Frequently asked questions

### Is QR & Barcode Reader free?

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

### Is Scientific calculator Lite free?

Scientific calculator Lite is free to download, with in-app purchases available.

### Do QR & Barcode Reader or Scientific calculator Lite have ads?

QR & Barcode Reader shows ads; Scientific calculator Lite does not.

### Which is updated more often, QR & Barcode Reader or Scientific calculator Lite?

QR & Barcode Reader ships an update every 2 weeks, and Scientific calculator Lite fortnightly. Most recently, QR & Barcode Reader was updated on October 27, 2026 and Scientific calculator Lite on October 25, 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.*