# 中周信息 vs 海河之北

The clearest difference is ads: 中周信息 at none against 海河之北's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | 中周信息 | 海河之北 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Size | 70 MB | 56 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hunan Zingrow Information Technology Co., Ltd.](https://appshunter.io/developer/1016386905) | [天津前沿移动文化传播有限公司](https://appshunter.io/developer/1052639930) |

## What reviewers say

### 中周信息

[App page](https://appshunter.io/ios/app/id1016386906)

**Features:** macOS Compatibility

**In-app purchases:** none


### 海河之北

[App page](https://appshunter.io/ios/app/id1491294871)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 中周信息 free?

中周信息 is free to download, with no in-app purchases.

### Is 海河之北 free?

海河之北 is free to download, with no in-app purchases.

### Do 中周信息 or 海河之北 have ads?

海河之北 shows ads; 中周信息 does not.

### Which is updated more often, 中周信息 or 海河之北?

中周信息 ships an update every 2 months, and 海河之北 every 2 months. Most recently, 中周信息 was updated on October 29, 2026 and 海河之北 on October 29, 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.*