# シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 vs 碁楽 Goraku

The clearest difference is ads: 碁楽 Goraku at none against シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学's shown. シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学's advantage is update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 17.0). On price, 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.

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 ships an update monthly, 碁楽 Goraku every 3 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 | 碁楽 Goraku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/id6740206126/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 100 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ayumu tonosaki](https://appshunter.io/developer/1669963115) | [Tsuyoshi Nakagawa](https://appshunter.io/developer/1198557793) |

## What reviewers say

### シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学

[App page](https://appshunter.io/ios/app/id6740206126)

Engage in fun math training with cute Shima-enaga birds. Practice multiplication tables and mental arithmetic through various game modes, improving calculation skills and concentration. Compete with others on a national ranking board and unlock unique Shima-enaga icons.

**Highlights:** Multiplication table practice, Randomized arithmetic problems (+, -, x, ÷), Time-based challenges, Score-based progression, National ranking system, Unlockable Shima-enaga icons, Cute character animations

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

**In-app purchases:** none


### 碁楽 Goraku

[App page](https://appshunter.io/ios/app/goraku/id6766481986)

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

**In-app purchases:** none


## Frequently asked questions

### Is シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 free?

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 is free to download, with no in-app purchases.

### Is 碁楽 Goraku free?

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

### Do シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 or 碁楽 Goraku have ads?

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 shows ads; 碁楽 Goraku does not.

### Which is updated more often, シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 or 碁楽 Goraku?

シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 ships an update monthly, and 碁楽 Goraku every 3 months. Most recently, シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 was updated on October 30, 2026 and 碁楽 Goraku on November 5, 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.*