# 口腔执业医师题库2026 vs Why Science

The clearest difference is in-app purchases: Why Science at none against 口腔执业医师题库2026's 8. Why Science also leads on update cadence (every 5 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 口腔执业医师题库2026 sells 8 one-off in-app purchases. Why Science asks for nothing beyond the download.

口腔执业医师题库2026 ships an update every 5 months, Why Science every 5 days. The most recent releases landed on September 15, 2026 and July 17, 2026 respectively.

## The numbers

| Metric | 口腔执业医师题库2026 | Why Science |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Size | 63 MB | 31 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Chongqing Kaixin network technology Co., LTD](https://appshunter.io/developer/1809882583) | [Why Science LLC](https://appshunter.io/developer/1855795255) |

## What reviewers say

### 口腔执业医师题库2026

[App page](https://appshunter.io/ios/app/2026/id6746599001)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买会员1个月 | $4.99 | one-time |
| 购买会员6个月 | $6.99 | one-time |
| 购买会员12个月 | $7.99 | one-time |
| 购买会员24个月 | $9.99 | one-time |
| 购买视频课程12个月 | $22.99 | one-time |
| 购买套餐视频课程12个月 | $39.99 | one-time |
| 购买精品视频课程12个月 | $59.99 | one-time |
| 购买无忧视频课程12个月 | $79.99 | one-time |


### Why Science

[App page](https://appshunter.io/ios/app/why-science/id6755714005)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 口腔执业医师题库2026 free?

口腔执业医师题库2026 is free to download, with in-app purchases available.

### Is Why Science free?

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

### Do 口腔执业医师题库2026 or Why Science have ads?

Neither 口腔执业医师题库2026 nor Why Science shows ads.

### Which is updated more often, 口腔执业医师题库2026 or Why Science?

口腔执业医师题库2026 ships an update every 5 months, and Why Science every 5 days. Most recently, 口腔执业医师题库2026 was updated on September 15, 2026 and Why Science on July 17, 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.*