# 百Math vs 99 More

The clearest difference is update cadence: 百Math at weekly against 99 More's every 2 months. 99 More's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

百Math ships an update weekly, 99 More every 2 months. The most recent releases landed on August 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 百Math | 99 More |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 18 MB | 32 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [naoya saito](https://appshunter.io/developer/1576521641) | [DAISUKE MATSUYOSHI](https://appshunter.io/developer/1545916488) |

## 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


### 99 More

[App page](https://appshunter.io/ios/app/99-more-app-for-mental-math/id6446323889)

**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 99 More free?

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

### Do 百Math or 99 More have ads?

Both 百Math and 99 More show ads.

### Which is updated more often, 百Math or 99 More?

百Math ships an update weekly, and 99 More every 2 months. Most recently, 百Math was updated on August 11, 2026 and 99 More on September 9, 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.*