# NumHole vs 六一儿歌

The clearest difference is in-app purchases: 六一儿歌 at none against NumHole's 1. 六一儿歌 also leads on iOS requirement (11.0 vs 15.0). NumHole's advantage is update cadence (every 6 months vs every 45 months). On price, ads and device support there is nothing between them.

Both are free to download. NumHole sells 1 one-off in-app purchase. 六一儿歌 asks for nothing beyond the download.

NumHole ships an update every 6 months, 六一儿歌 every 45 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | NumHole | 六一儿歌 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 45 months |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 391 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [永生 刘](https://appshunter.io/developer/830484999) | [运涛 余](https://appshunter.io/developer/977049266) |

## What reviewers say

### NumHole

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

This app challenges players with arithmetic puzzles, starting simple and increasing in difficulty. It enhances mental math skills and logical thinking through engaging number-based challenges.

**Highlights:** Gradual difficulty increase, Mental arithmetic training, Algorithmic thinking development, Number-based puzzles, Logical relationship analysis

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

**In-app purchases (1)**

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


### 六一儿歌

[App page](https://appshunter.io/ios/app/id1191408391)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NumHole free?

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

### Is 六一儿歌 free?

六一儿歌 is free to download, with no in-app purchases.

### Do NumHole or 六一儿歌 have ads?

Neither NumHole nor 六一儿歌 shows ads.

### Which is updated more often, NumHole or 六一儿歌?

NumHole ships an update every 6 months, and 六一儿歌 every 45 months. Most recently, NumHole was updated on November 2, 2026 and 六一儿歌 on November 2, 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.*