# 猜谜语(十万个为什么猜谜语) vs 第一次遇见科学

The clearest difference is in-app purchases: 猜谜语(十万个为什么猜谜语) at none against 第一次遇见科学's 4. 猜谜语(十万个为什么猜谜语) also leads on iOS requirement (8.0 vs 12.0). 第一次遇见科学's advantage is update cadence (every 3 weeks vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. 第一次遇见科学 sells 4 one-off in-app purchases. 猜谜语(十万个为什么猜谜语) asks for nothing beyond the download.

猜谜语(十万个为什么猜谜语) ships an update every 13 months, 第一次遇见科学 every 3 weeks. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 猜谜语(十万个为什么猜谜语) | 第一次遇见科学 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Size | 59 MB | 76 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nanjing hanhe culture media Co., LTD](https://appshunter.io/developer/532480776) | [Shanghai Juvenile & Children's Publishing House Co., Ltd](https://appshunter.io/developer/1449920791) |

## What reviewers say

### 猜谜语(十万个为什么猜谜语)

[App page](https://appshunter.io/ios/app/id590309529)

**Features:** macOS Compatibility

**In-app purchases:** none


### 第一次遇见科学

[App page](https://appshunter.io/ios/app/id6474520623)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6阅读币 | $0.99 | one-time |
| 1阅读币 | $0.99 | one-time |
| 12阅读币 | $1.99 | one-time |
| 25阅读币 | $3.99 | one-time |


## Frequently asked questions

### Is 猜谜语(十万个为什么猜谜语) free?

猜谜语(十万个为什么猜谜语) is free to download, with no in-app purchases.

### Is 第一次遇见科学 free?

第一次遇见科学 is free to download, with in-app purchases available.

### Do 猜谜语(十万个为什么猜谜语) or 第一次遇见科学 have ads?

Neither 猜谜语(十万个为什么猜谜语) nor 第一次遇见科学 shows ads.

### Which is updated more often, 猜谜语(十万个为什么猜谜语) or 第一次遇见科学?

猜谜语(十万个为什么猜谜语) ships an update every 13 months, and 第一次遇见科学 every 3 weeks. Most recently, 猜谜语(十万个为什么猜谜语) was updated on November 6, 2026 and 第一次遇见科学 on November 4, 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.*