# HyakuRenZan vs 百Math

The clearest difference is ads: HyakuRenZan at none against 百Math's shown. HyakuRenZan also leads on monetization model (free vs ad-supported) and iOS requirement (6.0 vs 26.0). 百Math's advantage is update cadence (every 9 days vs every 23 months). On price, review sentiment, 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.

HyakuRenZan ships an update every 23 months, 百Math every 9 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | HyakuRenZan | 百Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/hyakurenzan/id484882923/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 9 days** |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 18 MB |
| Requires iOS | **6.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [marge co., ltd.](https://appshunter.io/developer/331850369) | [naoya saito](https://appshunter.io/developer/1576521641) |

## What reviewers say

### HyakuRenZan

[App page](https://appshunter.io/ios/app/hyakurenzan/id484882923)

This app trains concentration, reaction, and calculation skills through a number-based puzzle game. Players solve puzzles by arranging numbers vertically and horizontally, with various modes and difficulty levels to challenge their abilities. Track your progress and compete globally.

**Highlights:** Concentration, reaction, and calculation training, Number arrangement puzzles, Multiple game modes (addition, subtraction, multiplication), Adjustable difficulty levels, Real-time calculation speed feedback, Visual progress tracking with graphs, Global leaderboards via GameCenter

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 HyakuRenZan free?

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

### Is 百Math free?

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

### Do HyakuRenZan or 百Math have ads?

百Math shows ads; HyakuRenZan does not.

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

HyakuRenZan ships an update every 23 months, and 百Math every 9 days. Most recently, HyakuRenZan was updated on October 8, 2026 and 百Math on October 18, 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.*