# 刘老师系列 vs 背句子背单词

The clearest difference is price: 刘老师系列 at Free against 背句子背单词's $0.99. 刘老师系列 also leads on iOS requirement (9.0 vs 13.4). 背句子背单词's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

刘老师系列 is free to download; 背句子背单词 costs $0.99 up front. 刘老师系列 sells 1 one-off in-app purchase. 背句子背单词 asks for nothing beyond the download.

## The numbers

| Metric | 刘老师系列 | 背句子背单词 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 148 MB | 15 MB |
| Requires iOS | **9.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [成城 高](https://appshunter.io/developer/1043441388) | [秀 柯](https://appshunter.io/developer/1771758844) |

## What reviewers say

### 刘老师系列

[App page](https://appshunter.io/ios/app/7/id1284412499)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 刘老师-译林版 英语七年级（下）全部功能 | $2.99 | one-time |


### 背句子背单词

[App page](https://appshunter.io/ios/app/id6736384928)

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

**In-app purchases:** none


## Frequently asked questions

### Is 刘老师系列 free?

刘老师系列 is free to download, with in-app purchases available.

### Is 背句子背单词 free?

背句子背单词 costs $0.99, with no in-app purchases.

### Do 刘老师系列 or 背句子背单词 have ads?

Neither 刘老师系列 nor 背句子背单词 shows ads.

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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.*