# 百Math vs 100 Square Calc

The clearest difference is in-app purchases: 百Math at none against 100 Square Calc's 1. 百Math also leads on update cadence (every 9 days vs every 2 months). 100 Square Calc's advantage is iOS requirement (12.0 vs 26.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. 100 Square Calc sells 1 one-off in-app purchase. 百Math asks for nothing beyond the download.

百Math ships an update every 9 days, 100 Square Calc every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 百Math | 100 Square Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/100-square-calc-add-and-mul/id1598691332/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 18 MB | 60 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [naoya saito](https://appshunter.io/developer/1576521641) | [enoiu](https://appshunter.io/developer/1595987496) |

## What reviewers say

### 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


### 100 Square Calc

[App page](https://appshunter.io/ios/app/100-square-calc-add-and-mul/id1598691332)

This app offers a 10x10 grid for practicing addition and multiplication. It tracks your progress with time measurements and graphs, helping to improve mental arithmetic and brain training. Features include smooth input, personal best records, and customization options.

**Highlights:** 100 square addition practice, 100 square multiplication practice, Time measurement and graphing, Personal best and average time tracking, Customizable themes and dark mode, Smooth numeric input

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is 百Math free?

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

### Is 100 Square Calc free?

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

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

Both 百Math and 100 Square Calc show ads.

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

百Math ships an update every 9 days, and 100 Square Calc every 2 months. Most recently, 百Math was updated on November 3, 2026 and 100 Square Calc on November 3, 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.*