# 百Math vs BrainTrainingCalculator

The clearest difference is iOS requirement: BrainTrainingCalculator at 15.5 against 百Math's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 百Math | BrainTrainingCalculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Ad-supported | — |
| Size | 18 MB | 5 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [naoya saito](https://appshunter.io/developer/1576521641) | [ryo muranaka](https://appshunter.io/developer/1606480078) |

## 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


### BrainTrainingCalculator

[App page](https://appshunter.io/ios/app/braintrainingcalculatorsimple/id1644516996)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 百Math free?

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

### Is BrainTrainingCalculator free?

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

### Do 百Math or BrainTrainingCalculator have ads?

Both 百Math and BrainTrainingCalculator show ads.

### Which is updated more often, 百Math or BrainTrainingCalculator?

百Math ships an update weekly, and BrainTrainingCalculator weekly. Most recently, 百Math was updated on September 14, 2026 and BrainTrainingCalculator on September 24, 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.*