# ClassWiz Calc App QR vs Pocket 991

The clearest difference is price: ClassWiz Calc App QR at Free against Pocket 991's $0.99. ClassWiz Calc App QR also leads on iOS requirement (15.1 vs 17.0). Pocket 991's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

ClassWiz Calc App QR is free to download; Pocket 991 costs $0.99 up front. ClassWiz Calc App QR sells 1 in-app purchase, starting at $14.99 per year. Pocket 991 asks for nothing beyond the download.

ClassWiz Calc App QR ships an update every 3 months, Pocket 991 fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ClassWiz Calc App QR | Pocket 991 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.1 (8 ratings)](https://appshunter.io/ios/app/classwiz-calc-app-qr/id6448265669/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 69 MB | 12 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [Charlie Candlish](https://appshunter.io/developer/1649541666) |

## What reviewers say

### ClassWiz Calc App QR

[App page](https://appshunter.io/ios/app/classwiz-calc-app-qr/id6448265669)

This app brings the functionality of Casio's ClassWiz scientific calculators to your smartphone or tablet. Perform advanced calculations, manage spreadsheets, and generate graphs by connecting to Casio's online services. It mirrors the operation of physical calculators and uses QR codes for seamless integration.

**Highlights:** Scientific calculator functions, Statistical calculations, Spreadsheet management, Matrix calculations, Graph display, QR code reading, Textbook-like input

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClassWiz 1 year Subscription | $14.99 | per year |


### Pocket 991

[App page](https://appshunter.io/ios/app/pocket-991/id6809568813)

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

**In-app purchases:** none


## Frequently asked questions

### Is ClassWiz Calc App QR free?

ClassWiz Calc App QR is free to download, with in-app purchases available.

### Is Pocket 991 free?

Pocket 991 costs $0.99, with no in-app purchases.

### Do ClassWiz Calc App QR or Pocket 991 have ads?

ClassWiz Calc App QR shows ads; Pocket 991 does not.

### Which is updated more often, ClassWiz Calc App QR or Pocket 991?

ClassWiz Calc App QR ships an update every 3 months, and Pocket 991 fortnightly. Most recently, ClassWiz Calc App QR was updated on November 5, 2026 and Pocket 991 on October 31, 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.*