# Scan QR Code vs Stackis RPN

The clearest difference is ads: Stackis RPN at none against Scan QR Code's shown. Stackis RPN also leads on monetization model (free vs free with in-app purchases). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Scan QR Code sells 4 in-app purchases, starting at $1.99 per 7 days and Stackis RPN sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Scan QR Code against 5.0 for Stackis RPN. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Scan QR Code | Stackis RPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/scan-qr-code-qrcode-scanner/id6736467057/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/stackis-rpn/id6752929114/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 11 MB | 10 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andy Sutanto](https://appshunter.io/developer/1659282966) | [Skimra](https://appshunter.io/developer/403502071) |

## What reviewers say

### Scan QR Code

[App page](https://appshunter.io/ios/app/scan-qr-code-qrcode-scanner/id6736467057)

Easily scan QR codes from your camera, photos, files, or iCloud. Save your scan history and perform actions like opening links or adding contacts directly from scanned codes. This user-friendly tool offers quick and reliable QR code decoding.

**Highlights:** Scan from camera, photos, files, or iCloud, Save and manage scan history, Direct actions on scanned codes, User-friendly interface, Quick and reliable scanning

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scan QR Code Pro - 1W | $1.99 | per 7 days |
| QR Code Scanner Pro - 1Y | $19.99 | per year |
| Offering | $19.99 | one-time |
| QR Code Scanner Pro - Lifetime | $39.99 | one-time |


### Stackis RPN

[App page](https://appshunter.io/ios/app/stackis-rpn/id6752929114)

A calculator designed for users who prefer Reverse Polish Notation (RPN). It offers a familiar interface for RPN users and includes support for duodecimal calculations.

**Highlights:** RPN calculation style, Duodecimal (dozenal) support, Familiar interface for RPN users, Simple and pleasant user experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Mode | $1.99 | one-time |


## Frequently asked questions

### Is Scan QR Code free?

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

### Is Stackis RPN free?

Stackis RPN is free to download, with in-app purchases available.

### Which has better reviews, Scan QR Code or Stackis RPN?

Scan QR Code and Stackis RPN are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do Scan QR Code or Stackis RPN have ads?

Scan QR Code shows ads; Stackis RPN does not.

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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.*