# 易则易知 vs 百题斩网校HD

The clearest difference is device support: 易则易知 at 3 against 百题斩网校HD's 1. 百题斩网校HD's advantage is iOS requirement (8.0 vs 11.0). On price, ads 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 | 易则易知 | 百题斩网校HD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 19 MB | 49 MB |
| Requires iOS | 11.0 | **8.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 12+ |
| Developer | [上海易知信息科技股份有限公司](https://appshunter.io/developer/1439442031) | [无锡市百题斩网络科技有限公司](https://appshunter.io/developer/1019012473) |

## What reviewers say

### 易则易知

[App page](https://appshunter.io/ios/app/id1502945729)

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

**In-app purchases:** none


### 百题斩网校HD

[App page](https://appshunter.io/ios/app/hd/id1517334736)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 易则易知 free?

易则易知 is free to download, with no in-app purchases.

### Is 百题斩网校HD free?

百题斩网校HD is free to download, with no in-app purchases.

### Do 易则易知 or 百题斩网校HD have ads?

Neither 易则易知 nor 百题斩网校HD 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.*