# 钕娲编程实验室 vs 挑战24点

The clearest difference is in-app purchases: 钕娲编程实验室 at none against 挑战24点's 3. 钕娲编程实验室 also leads on iOS requirement (10 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 挑战24点 sells 3 one-off in-app purchases. 钕娲编程实验室 asks for nothing beyond the download.

钕娲编程实验室 ships an update every 3 months, 挑战24点 every 2 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 钕娲编程实验室 | 挑战24点 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/24/id1610914130/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 192 MB | 18 MB |
| Requires iOS | **10** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [NUWA ROBOTICS](https://appshunter.io/developer/1401235676) | [珍珍 张](https://appshunter.io/developer/1607946529) |

## What reviewers say

### 钕娲编程实验室

[App page](https://appshunter.io/ios/app/id1419354812)

**Features:** macOS Compatibility

**In-app purchases:** none


### 挑战24点

[App page](https://appshunter.io/ios/app/24/id1610914130)

This puzzle game challenges you to reach the number 24 using addition, subtraction, multiplication, and division with four given numbers. It offers hints, adjustable difficulty, and a record of your challenges. You can even customize card images.

**Highlights:** Calculate 24 using arithmetic, Get hints for solutions, Choose challenge difficulty, Track challenge records, Share progress, Custom card images

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 每日提示无限制 | $0.99 | one-time |
| 自定义卡片皮肤 | $0.99 | one-time |
| 终身高级版 | $1.99 | one-time |


## Frequently asked questions

### Is 钕娲编程实验室 free?

钕娲编程实验室 is free to download, with no in-app purchases.

### Is 挑战24点 free?

挑战24点 is free to download, with in-app purchases available.

### Do 钕娲编程实验室 or 挑战24点 have ads?

Neither 钕娲编程实验室 nor 挑战24点 shows ads.

### Which is updated more often, 钕娲编程实验室 or 挑战24点?

钕娲编程实验室 ships an update every 3 months, and 挑战24点 every 2 months. Most recently, 钕娲编程实验室 was updated on October 21, 2026 and 挑战24点 on October 13, 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.*