# NumHole

> NumHole (iPhone/iPad app by 永生 刘.)

- Source: https://appshunter.io/ios/app/numhole/id1063109824 (this page in markdown: same URL + `.md`)
- Developer: [永生 刘](https://appshunter.io/developer/830484999)
- Category: Education, Entertainment
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.1 · 28 MB
- Languages: English, Chinese
- Released: 2016-05-05
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/numhole/id1063109824/reviews.md

## What is NumHole?

Researching the results obtained from simple calculations between numbers, such as multiplication and division, gradually increasing the difficulty level step by step, emphasizing players' mental arithmetic abilities, and helping players improve their algorithmic thinking while passing levels. Although it's only simple addition, subtraction, multiplication, and division, when it reaches a certain level of difficulty, players need to spend more energy thinking about the logical relationships between numbers.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 提示次数6次 | $0.99 | one-time |



## Version history (last 5 releases)

### 6.0.6 — 2024-11-18

Fix the known bugs

### 6.0.5 — 2024-05-09

Add Multilingual

### 6.0.4 — 2023-04-09

添加10的选择

### 6.0.3 — 2023-04-08

fix-bug

### 6.0.2 — 2023-03-28

fix bug

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## More apps by 永生 刘

- [HEXCalc(binary conversion)](https://appshunter.io/ios/app/hexcalcbinary-conversion/id996038221)
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- [数理化-初中高中的公式大全](https://appshunter.io/ios/app/id1212062256)

All apps by 永生 刘: https://appshunter.io/developer/830484999

## Related topics

[numhole](https://appshunter.io/ios/topics/numhole)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*