# MR. CALC vs QR Code

The clearest difference is rating: MR. CALC at 4.8 against QR Code's 1.0. MR. CALC also leads on ratings volume (39 vs 1) and update cadence (every 10 days vs monthly). QR Code's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MR. CALC holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: MR. CALC has 39 ratings behind it against 1, so its average is the more settled of the two.

MR. CALC ships an update every 10 days, QR Code monthly. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MR. CALC | QR Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (39 ratings)](https://appshunter.io/ios/app/mr-calc/id1498355556/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/qr-code-simple-qr-scanner/id1605619998/reviews) |
| Number of ratings | **39** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Ad-supported | **Free** |
| Size | 5 MB | 36 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuma Kitasei](https://appshunter.io/developer/1199831834) | [HoJin Lee](https://appshunter.io/developer/1580728199) |

## What reviewers say

### MR. CALC

[App page](https://appshunter.io/ios/app/mr-calc/id1498355556)

A straightforward calculator app for iPhone and iPad that displays formulas as you calculate. It offers seven different calculator types, easily switchable by swiping, making it convenient for managing multiple calculations simultaneously.

**Highlights:** Formula display during calculation, Seven different calculator types, Swipe to switch calculators, Simple and easy to use, Available for iPhone and iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### QR Code

[App page](https://appshunter.io/ios/app/qr-code-simple-qr-scanner/id1605619998)

This utility app automatically saves a history of all scanned QR codes. It requires camera permissions to function correctly.

**Highlights:** Scan QR codes, Save scan history, Requires camera permission

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

**In-app purchases:** none


## Frequently asked questions

### Is MR. CALC free?

MR. CALC is free to download, with no in-app purchases.

### Is QR Code free?

QR Code is free to download, with no in-app purchases.

### Which has better reviews, MR. CALC or QR Code?

MR. CALC is rated higher. MR. CALC averages 4.8 out of 5 from 39 ratings, while QR Code averages 1.0 from 1 ratings.

### Do MR. CALC or QR Code have ads?

MR. CALC shows ads; QR Code does not.

### Which is updated more often, MR. CALC or QR Code?

MR. CALC ships an update every 10 days, and QR Code monthly. Most recently, MR. CALC was updated on October 4, 2026 and QR Code on October 7, 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.*