# 100 Squares Calc vs find difference brain training

The clearest difference is price: 100 Squares Calc at Free against find difference brain training's $2.99. find difference brain training's advantage is ads (none vs shown) and update cadence (every 9 days vs monthly). On in-app purchases and device support there is nothing between them.

100 Squares Calc is free to download; find difference brain training costs $2.99 up front. 100 Squares Calc sells 2 one-off in-app purchases and find difference brain training sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

100 Squares Calc ships an update monthly, find difference brain training every 9 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 100 Squares Calc | find difference brain training |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| 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 | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 213 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) | [Jang PilJae](https://appshunter.io/developer/706956910) |

## 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 |


### find difference brain training

[App page](https://appshunter.io/ios/app/find-difference-brain-training/id6503654356)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100K Coins | $0.99 | one-time |
| 1M Coin | $5.99 | one-time |
| 5M Coin | $19.99 | one-time |
| 10M Coin | $29.99 | one-time |


## Frequently asked questions

### Is 100 Squares Calc free?

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

### Is find difference brain training free?

find difference brain training costs $2.99, and also offers in-app purchases.

### Do 100 Squares Calc or find difference brain training have ads?

100 Squares Calc shows ads; find difference brain training does not.

### Which is updated more often, 100 Squares Calc or find difference brain training?

100 Squares Calc ships an update monthly, and find difference brain training every 9 days. Most recently, 100 Squares Calc was updated on November 6, 2026 and find difference brain training on November 4, 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.*