# 100 Squares Calc vs 百Math

The clearest difference is in-app purchases: 百Math at none against 100 Squares Calc's 2. 百Math also leads on update cadence (weekly vs monthly). 100 Squares Calc's advantage is review sentiment (75% vs 50%) and iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. 100 Squares Calc sells 2 one-off in-app purchases. 百Math asks for nothing beyond the download.

100 Squares Calc ships an update monthly, 百Math weekly. The most recent releases landed on September 19, 2026 and August 11, 2026 respectively.

## The numbers

| Metric | 100 Squares Calc | 百Math |
| --- | --- | --- |
| 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** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 28 MB | 18 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [be-style](https://appshunter.io/developer/534131442) | [naoya saito](https://appshunter.io/developer/1576521641) |

## 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 |


### 百Math

[App page](https://appshunter.io/ios/app/math-calculation-app/id1576521639)

This app helps users improve their mental arithmetic skills through a 100-problem calculation trainer. It offers various modes, progress tracking, and a global leaderboard to encourage practice and competition. A clean design and home screen widget provide convenient access.

**Highlights:** 100-problem calculation trainer, Addition, Subtraction, Multiplication, Division modes, Progress tracking (streak, average time, charts), Global ranking system, Distraction-free design, Home screen widget

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

**In-app purchases:** none


## Frequently asked questions

### Is 100 Squares Calc free?

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

### Is 百Math free?

百Math is free to download, with no in-app purchases.

### Do 100 Squares Calc or 百Math have ads?

Both 100 Squares Calc and 百Math show ads.

### Which is updated more often, 100 Squares Calc or 百Math?

100 Squares Calc ships an update monthly, and 百Math weekly. Most recently, 100 Squares Calc was updated on September 19, 2026 and 百Math on August 11, 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.*