# HL vs 书否 · 阅读目标与计划管理

The clearest difference is in-app purchases: HL at none against 书否 · 阅读目标与计划管理's 1. HL also leads on iOS requirement (9.0 vs 15.5). 书否 · 阅读目标与计划管理's advantage is device support. On price there is nothing between them.

Both are free to download. 书否 · 阅读目标与计划管理 sells 1 one-off in-app purchase. HL asks for nothing beyond the download.

## The numbers

| Metric | HL | 书否 · 阅读目标与计划管理 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 19 MB | 22 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [上海铭控传感技术有限公司](https://appshunter.io/developer/1687248200) | [锐坚 许](https://appshunter.io/developer/668626907) |

## What reviewers say

### HL

[App page](https://appshunter.io/ios/app/hl-151-cn/id6448973601)

**In-app purchases:** none


### 书否 · 阅读目标与计划管理

[App page](https://appshunter.io/ios/app/id6469686688)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买一年使用权 | $1.99 | one-time |


## Frequently asked questions

### Is HL free?

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

### Is 书否 · 阅读目标与计划管理 free?

书否 · 阅读目标与计划管理 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.*