# TapOff! vs 试题库

The clearest difference is iOS requirement: TapOff! at 9.0 against 试题库's 17. On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | TapOff! | 试题库 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 months |
| Size | 37 MB | 18 MB |
| Requires iOS | **9.0** | 17 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 17+ |
| Developer | [AUXILIARY STUDIOS CC](https://appshunter.io/developer/967974559) | [中科软股教育科技(北京)股份有限公司](https://appshunter.io/developer/1395665821) |

## What reviewers say

### TapOff!

[App page](https://appshunter.io/ios/app/tapoff/id1327809569)

**In-app purchases:** none


### 试题库

[App page](https://appshunter.io/ios/app/id1478850740)

**In-app purchases:** none


## Frequently asked questions

### Is TapOff! free?

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

### Is 试题库 free?

试题库 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.*