# 注册化工工程师题库 vs VOSP

The clearest difference is in-app purchases: VOSP at none against 注册化工工程师题库's 8. On price and iOS requirement there is nothing between them.

Both are free to download. 注册化工工程师题库 sells 8 one-off in-app purchases. VOSP asks for nothing beyond the download.

## The numbers

| Metric | 注册化工工程师题库 | VOSP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Size | 87 MB | 349 MB |
| Requires iOS | 12.0 | 12.0 |
| Age rating | 4+ | 17+ |
| Developer | [长沙优学互动信息技术有限公司](https://appshunter.io/developer/1247376685) | [Beijing East Simulation&Control Technology Co.Ltd](https://appshunter.io/developer/1111054740) |

## What reviewers say

### 注册化工工程师题库

[App page](https://appshunter.io/ios/app/id6478516651)

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1学币 | $0.99 | one-time |
| 10学币 | $0.99 | one-time |
| 40学币 | $5.99 | one-time |
| 50学币 | $6.99 | one-time |
| 100学币 | $14.99 | one-time |
| 120学币 | $17.99 | one-time |
| 150学币 | $19.99 | one-time |
| 300学币 | $39.99 | one-time |


### VOSP

[App page](https://appshunter.io/ios/app/vosp/id6627338679)

**In-app purchases:** none


## Frequently asked questions

### Is 注册化工工程师题库 free?

注册化工工程师题库 is free to download, with in-app purchases available.

### Is VOSP free?

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

---

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