# 选煤素质提升 vs 巧学背单词

The clearest difference is in-app purchases: 选煤素质提升 at none against 巧学背单词's 3. 选煤素质提升 also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 巧学背单词 sells 3 one-off in-app purchases. 选煤素质提升 asks for nothing beyond the download.

## The numbers

| Metric | 选煤素质提升 | 巧学背单词 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 37 MB | 232 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [明海 徐](https://appshunter.io/developer/1528272191) | [HuaiAn MaiTuo Network Technology Co. Ltd.](https://appshunter.io/developer/1501829071) |

## What reviewers say

### 选煤素质提升

[App page](https://appshunter.io/ios/app/id1561283793)

**Features:** macOS Compatibility

**In-app purchases:** none


### 巧学背单词

[App page](https://appshunter.io/ios/app/id6444930747)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月VIP | $9.99 | one-time |
| 半年VIP | $49.99 | one-time |
| 1年VIP | $99.99 | one-time |


## Frequently asked questions

### Is 选煤素质提升 free?

选煤素质提升 is free to download, with no in-app purchases.

### Is 巧学背单词 free?

巧学背单词 is free to download, with in-app purchases available.

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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.*