# 读库 vs 要知

The clearest difference is in-app purchases: 要知 at none against 读库's 3. 要知 also leads on iOS requirement (13.0 vs 15.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 读库 sells 3 one-off in-app purchases. 要知 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for 读库 against 4.3 for 要知. Both are backed by a comparable volume of ratings — 35 and 17 respectively. Written reviews are what separate them: 64% of 读库's written reviews are positive against 68% of 要知's.

读库 ships an update every 3 weeks, 要知 fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | 读库 | 要知 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (35 ratings)](https://appshunter.io/ios/app/id1592613682/reviews)** | [4.3 (17 ratings)](https://appshunter.io/ios/app/24/id1618892080/reviews) |
| Number of ratings | **35** | 17 |
| Positive reviews | 64.4% of reviews | **68.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 106 MB | 53 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [读库](https://appshunter.io/developer/1592613684) | [Qingdao Ruanmei Network Technology Co., ltd.](https://appshunter.io/developer/570610862) |

## What reviewers say

### 读库

[App page](https://appshunter.io/ios/app/id1592613682)

This app offers multi-perspective reference materials for annual members, including behind-the-scenes content, interviews, and event follow-ups in various media formats. Users can also build their personal knowledge base using the app's small utility tools. Start enhancing your knowledge with this app today!

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买文章（永久可读） | $0.99 | one-time |
| 读库App一年会员权益 | $24.99 | one-time |
| 读库2022年全年阅读计划 | $39.99 | one-time |


### 要知

[App page](https://appshunter.io/ios/app/24/id1618892080)

This app provides a concise daily briefing of major events from the past 24 hours, week, and year. It aims to combat information overload by summarizing key news across domestic and international topics, social media trends, and various sectors like technology, finance, and entertainment.

**Highlights:** Daily event summaries, 24-hour, weekly, and yearly recaps, Covers domestic and international news, Includes social media trends, Summarizes tech, finance, and entertainment news

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 读库 free?

读库 is free to download, with in-app purchases available.

### Is 要知 free?

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

### Which has better reviews, 读库 or 要知?

读库 is rated higher. 读库 averages 4.3 out of 5 from 35 ratings, while 要知 averages 4.3 from 17 ratings.

### Do 读库 or 要知 have ads?

Neither 读库 nor 要知 shows ads.

### Which is updated more often, 读库 or 要知?

读库 ships an update every 3 weeks, and 要知 fortnightly. Most recently, 读库 was updated on November 3, 2026 and 要知 on November 3, 2026.

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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.*