# NumHole vs 北斗知识星球

The clearest difference is device support: NumHole at 3 against 北斗知识星球's —. 北斗知识星球's advantage is iOS requirement (11.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. NumHole sells 1 one-off in-app purchase and 北斗知识星球 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | NumHole | 北斗知识星球 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Size | 35 MB | 822 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [永生 刘](https://appshunter.io/developer/830484999) | [Beijing Dipper Publishing Co., Ltd.](https://appshunter.io/developer/1465064938) |

## What reviewers say

### NumHole

[App page](https://appshunter.io/ios/app/numhole/id1063109824)

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

**In-app purchases (1)**

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


### 北斗知识星球

[App page](https://appshunter.io/ios/app/id6550893575)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 地球仪图片 | Free | one-time |


## Frequently asked questions

### Is NumHole free?

NumHole is free to download, with in-app purchases available.

### Is 北斗知识星球 free?

北斗知识星球 is free to download, with in-app purchases available.

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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.*