# 88くんマスター　そろばん教室88くん vs ワンダーボックス ｜WonderBox

The clearest difference is review sentiment: ワンダーボックス ｜WonderBox at 76% against 88くんマスター　そろばん教室88くん's 0%. ワンダーボックス ｜WonderBox also leads on update cadence (every 8 days vs every 3 months). 88くんマスター　そろばん教室88くん's advantage is iOS requirement (10.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

88くんマスター　そろばん教室88くん ships an update every 3 months, ワンダーボックス ｜WonderBox every 8 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 88くんマスター　そろばん教室88くん | ワンダーボックス ｜WonderBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/wonderbox/id1492420477/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **76.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 28 MB | 1.2 GB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SEIHA NETWORK CO., LTD.](https://appshunter.io/developer/968260084) | [Wonderfy Inc.](https://appshunter.io/developer/1065477424) |

## What reviewers say

### 88くんマスター　そろばん教室88くん

[App page](https://appshunter.io/ios/app/88-88/id1207740524)

This official app from Soroban Kyoshitsu 88-kun offers practice for children attending their abacus classes. It allows for flash calculation and arithmetic drills at home, with features like multiplication tables and place value exercises.

**Highlights:** Flash calculation practice, Multiplication table drills, Place value exercises, Addition and subtraction practice, Division and multiplication drills, Number recognition for toddlers

**Features:** Vision Pro support

**In-app purchases:** none


### ワンダーボックス ｜WonderBox

[App page](https://appshunter.io/ios/app/wonderbox/id1492420477)

This app is a companion for a subscription-based educational service for children aged 4-10. It combines digital and analog activities to stimulate critical thinking, creativity, and curiosity through monthly themed learning materials.

**Highlights:** Digital and analog learning materials, Develops critical thinking, Fosters creativity, Sparks curiosity, STEAM education focus, Parental controls

**In-app purchases:** none


## Frequently asked questions

### Is 88くんマスター　そろばん教室88くん free?

88くんマスター　そろばん教室88くん is free to download, with no in-app purchases.

### Is ワンダーボックス ｜WonderBox free?

ワンダーボックス ｜WonderBox is free to download, with no in-app purchases.

### Do 88くんマスター　そろばん教室88くん or ワンダーボックス ｜WonderBox have ads?

Neither 88くんマスター　そろばん教室88くん nor ワンダーボックス ｜WonderBox shows ads.

### Which is updated more often, 88くんマスター　そろばん教室88くん or ワンダーボックス ｜WonderBox?

88くんマスター　そろばん教室88くん ships an update every 3 months, and ワンダーボックス ｜WonderBox every 8 days. Most recently, 88くんマスター　そろばん教室88くん was updated on November 2, 2026 and ワンダーボックス ｜WonderBox on November 3, 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.*