# 九年级英语上册 vs 校plus(教师)

The clearest difference is in-app purchases: 校plus(教师) at none against 九年级英语上册's 1. 校plus(教师) also leads on update cadence (every 3 weeks vs every 73 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 九年级英语上册 sells 1 one-off in-app purchase. 校plus(教师) asks for nothing beyond the download.

九年级英语上册 ships an update every 73 months, 校plus(教师) every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 九年级英语上册 | 校plus(教师) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 73 months | **Every 3 weeks** |
| Size | 146 MB | 114 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [卫英 肖](https://appshunter.io/developer/1220418402) | [南通亿荣网络科技有限公司](https://appshunter.io/developer/1558260208) |

## What reviewers say

### 九年级英语上册

[App page](https://appshunter.io/ios/app/id1531983182)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁全部章节内容并去除广告 | $2.99 | one-time |


### 校plus(教师)

[App page](https://appshunter.io/ios/app/plus/id1559839737)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 九年级英语上册 free?

九年级英语上册 is free to download, with in-app purchases available.

### Is 校plus(教师) free?

校plus(教师) is free to download, with no in-app purchases.

### Do 九年级英语上册 or 校plus(教师) have ads?

Neither 九年级英语上册 nor 校plus(教师) shows ads.

### Which is updated more often, 九年级英语上册 or 校plus(教师)?

九年级英语上册 ships an update every 73 months, and 校plus(教师) every 3 weeks. Most recently, 九年级英语上册 was updated on November 3, 2026 and 校plus(教师) on November 3, 2026.

---

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