# 十万个为什么 vs Wiki

The clearest difference is in-app purchases: Wiki at none against 十万个为什么's 2. 十万个为什么's advantage is ads (none vs shown) and iOS requirement (8.0 vs 12.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 十万个为什么 sells 2 one-off in-app purchases. Wiki asks for nothing beyond the download.

十万个为什么 ships an update every 3 weeks, Wiki fortnightly. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 十万个为什么 | Wiki |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 213 MB | 33 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou MXR Software Technology Co.,Ltd](https://appshunter.io/developer/484812886) | [MINERVA K.K.](https://appshunter.io/developer/1597905460) |

## What reviewers say

### 十万个为什么

[App page](https://appshunter.io/ios/app/4d-ar/id1257600706)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25元 | $3.99 | one-time |
| 40元 | $5.99 | one-time |


### Wiki

[App page](https://appshunter.io/ios/app/wiki-tik-bite-sized-learning/id6744751835)

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

**In-app purchases:** none


## Frequently asked questions

### Is 十万个为什么 free?

十万个为什么 is free to download, with in-app purchases available.

### Is Wiki free?

Wiki is free to download, with no in-app purchases.

### Do 十万个为什么 or Wiki have ads?

Wiki shows ads; 十万个为什么 does not.

### Which is updated more often, 十万个为什么 or Wiki?

十万个为什么 ships an update every 3 weeks, and Wiki fortnightly. Most recently, 十万个为什么 was updated on September 26, 2026 and Wiki on October 10, 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.*