# Reverse one digit multiplication tADa vs シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学

The clearest difference is ads: Reverse one digit multiplication tADa 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. Reverse one digit multiplication tADa also leads on iOS requirement (8.0 vs 15.0). 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 9 months). 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.

Reverse one digit multiplication tADa ships an update every 9 months, シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Reverse one digit multiplication tADa | シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 |
| --- | --- | --- |
| 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 | **No** | Yes |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | — | Ad-supported |
| Size | 4 MB | 100 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Currach Software](https://appshunter.io/developer/315759561) | [ayumu tonosaki](https://appshunter.io/developer/1669963115) |

## What reviewers say

### Reverse one digit multiplication tADa

[App page](https://appshunter.io/ios/app/reverse-one-digit-multiplication-tada/id483001832)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Reverse one digit multiplication tADa free?

Reverse one digit multiplication tADa is free to download, with no in-app purchases.

### 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.

### Do Reverse one digit multiplication tADa or シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 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; Reverse one digit multiplication tADa does not.

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

Reverse one digit multiplication tADa ships an update every 9 months, and シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 monthly. Most recently, Reverse one digit multiplication tADa was updated on November 1, 2026 and シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 on October 30, 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.*