# 油题库· vs HTML5教程

The clearest difference is in-app purchases: 油题库· at none against HTML5教程's 1. 油题库· also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. HTML5教程 sells 1 one-off in-app purchase. 油题库· asks for nothing beyond the download.

油题库· ships an update every 3 months, HTML5教程 every 4 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | 油题库· | HTML5教程 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 7 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [石油工业出版社](https://appshunter.io/developer/1019225064) | [宏斌 樊](https://appshunter.io/developer/1452129040) |

## What reviewers say

### 油题库·

[App page](https://appshunter.io/ios/app/id1432487310)

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

**In-app purchases:** none


### HTML5教程

[App page](https://appshunter.io/ios/app/html5/id1438635589)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告插件 | $3.99 | one-time |


## Frequently asked questions

### Is 油题库· free?

油题库· is free to download, with no in-app purchases.

### Is HTML5教程 free?

HTML5教程 is free to download, with in-app purchases available.

### Do 油题库· or HTML5教程 have ads?

HTML5教程 shows ads; 油题库· does not.

### Which is updated more often, 油题库· or HTML5教程?

油题库· ships an update every 3 months, and HTML5教程 every 4 months. Most recently, 油题库· was updated on November 2, 2026 and HTML5教程 on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*