# PCalc vs QR Keeper

The clearest difference is price: QR Keeper at Free against PCalc's $9.99. QR Keeper also leads on in-app purchases (none vs 4). PCalc's advantage is device support (5 vs 2) and iOS requirement (15.0 vs 17.6). On ads there is nothing between them.

QR Keeper is free to download; PCalc costs $9.99 up front. PCalc sells 4 one-off in-app purchases. QR Keeper asks for nothing beyond the download.

## The numbers

| Metric | PCalc | QR Keeper |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.7 (779 ratings)](https://appshunter.io/ios/app/pcalc/id284666222/reviews)** | — |
| Number of ratings | **779** | — |
| Positive reviews | 83.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 83 MB | 2 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TLA Systems Ltd.](https://appshunter.io/developer/284666225) | [Alain Hoang](https://appshunter.io/developer/1611911066) |

## What reviewers say

### PCalc

[App page](https://appshunter.io/ios/app/pcalc/id284666222)

A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.

**Highlights:** Optional RPN mode, Multi-line display, Extensive unit conversions, Paper tape, Multiple undo/redo, Hexadecimal, octal, binary support, Apple Watch app

**Features:** Apple Watch app, iMessage stickers, Fun Camera support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Large Tip | $4.99 | one-time |
| Enormous Tip | $9.99 | one-time |


### QR Keeper

[App page](https://appshunter.io/ios/app/qr-keeper/id6751516509)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PCalc free?

PCalc costs $9.99, and also offers in-app purchases.

### Is QR Keeper free?

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

### Do PCalc or QR Keeper have ads?

Neither PCalc nor QR Keeper shows ads.

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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.*