# 知谱教研 vs 人邮知书

The clearest difference is update cadence: 人邮知书 at every 3 weeks against 知谱教研's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

知谱教研 ships an update every 2 months, 人邮知书 every 3 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 知谱教研 | 人邮知书 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 274 MB | 404 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [北京中教仪科技有限公司](https://appshunter.io/developer/1639536743) | [Posts & Telecommunications Press](https://appshunter.io/developer/1214194493) |

## What reviewers say

### 知谱教研

[App page](https://appshunter.io/ios/app/id1639536741)

**Features:** macOS Compatibility

**In-app purchases:** none


### 人邮知书

[App page](https://appshunter.io/ios/app/id6443999317)

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

**In-app purchases:** none


## Frequently asked questions

### Is 知谱教研 free?

知谱教研 is free to download, with no in-app purchases.

### Is 人邮知书 free?

人邮知书 is free to download, with no in-app purchases.

### Do 知谱教研 or 人邮知书 have ads?

Neither 知谱教研 nor 人邮知书 shows ads.

### Which is updated more often, 知谱教研 or 人邮知书?

知谱教研 ships an update every 2 months, and 人邮知书 every 3 weeks. Most recently, 知谱教研 was updated on October 18, 2026 and 人邮知书 on October 24, 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.*