# 100 Squares Calc vs Arithmetic Workbook DX

The clearest difference is review sentiment: 100 Squares Calc at 75% against Arithmetic Workbook DX's 14%. Arithmetic Workbook DX's advantage is update cadence (fortnightly vs monthly) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 100 Squares Calc sells 2 one-off in-app purchases and Arithmetic Workbook DX sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

100 Squares Calc ships an update monthly, Arithmetic Workbook DX fortnightly. The most recent releases landed on September 19, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | 100 Squares Calc | Arithmetic Workbook DX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/100-squares-calc/id534131439/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | **75.0% of reviews** | 14.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 52 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [be-style](https://appshunter.io/developer/534131442) | [Gloding Inc.](https://appshunter.io/developer/780228385) |

## What reviewers say

### 100 Squares Calc

[App page](https://appshunter.io/ios/app/100-squares-calc/id534131439)

Practice basic math operations with timed challenges and progress tracking. Offers various modes, keyboard types, and mini-games to enhance learning and identify weak points. Supports Bluetooth keyboards and printing custom questions.

**Highlights:** Multiple math operation modes, Customizable keyboard types, Bluetooth keyboard support, Progress tracking and analytics, Study and edit modes, Mini-games for practice, Prefecture-based ranking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Color Customization | $1.99 | one-time |
| Hide Ads | $3.99 | one-time |


### Arithmetic Workbook DX

[App page](https://appshunter.io/ios/app/arithmetic-workbook-dx/id780228382)

This app offers a structured arithmetic curriculum for elementary school students, covering six years of learning. It provides daily practice problems, tracks progress, and includes advanced questions to prepare for junior high entrance exams. It's also suitable for adults looking to sharpen their math skills.

**Highlights:** Daily arithmetic problems, Progress tracking and review, Junior high entrance exam preparation, Customizable school settings, Time limits and scoring system, Solutions for all units

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| わりざん レベル21~35 | $0.99 | one-time |
| 分数 レベル21~35 | $0.99 | one-time |
| 割合 レベル21~35 | $0.99 | one-time |
| 単位 レベル21~35 | $0.99 | one-time |
| 図形 レベル21~35 | $0.99 | one-time |
| 小数 レベル21~35 | $0.99 | one-time |
| 文章題 レベル21~35 | $0.99 | one-time |
| 比 レベル21~35 | $0.99 | one-time |
| 速さ レベル21~35 | $0.99 | one-time |
| 全単元 レベル6~20パック | $6.99 | one-time |
| 全単元 レベル21~35パック | $6.99 | one-time |


## Frequently asked questions

### Is 100 Squares Calc free?

100 Squares Calc is free to download, with in-app purchases available.

### Is Arithmetic Workbook DX free?

Arithmetic Workbook DX is free to download, with in-app purchases available.

### Do 100 Squares Calc or Arithmetic Workbook DX have ads?

Both 100 Squares Calc and Arithmetic Workbook DX show ads.

### Which is updated more often, 100 Squares Calc or Arithmetic Workbook DX?

100 Squares Calc ships an update monthly, and Arithmetic Workbook DX fortnightly. Most recently, 100 Squares Calc was updated on September 19, 2026 and Arithmetic Workbook DX on August 13, 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.*