# 省钱优选联盟 vs 知播鸭

The clearest difference is update cadence: 知播鸭 at every 2 weeks against 省钱优选联盟'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.

省钱优选联盟 ships an update every 2 months, 知播鸭 every 2 weeks. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 省钱优选联盟 | 知播鸭 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 59 MB | 54 MB |
| Requires iOS | 10.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [永堡 刘](https://appshunter.io/developer/1336581855) | [Shenzhen Baishu Network Technology Co., Ltd.](https://appshunter.io/developer/1541281839) |

## What reviewers say

### 省钱优选联盟

[App page](https://appshunter.io/ios/app/app/id1360179776)

**Features:** macOS Compatibility

**In-app purchases:** none


### 知播鸭

[App page](https://appshunter.io/ios/app/id1541281837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 省钱优选联盟 free?

省钱优选联盟 is free to download, with no in-app purchases.

### Is 知播鸭 free?

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

### Do 省钱优选联盟 or 知播鸭 have ads?

Both 省钱优选联盟 and 知播鸭 show ads.

### Which is updated more often, 省钱优选联盟 or 知播鸭?

省钱优选联盟 ships an update every 2 months, and 知播鸭 every 2 weeks. Most recently, 省钱优选联盟 was updated on September 10, 2026 and 知播鸭 on September 20, 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.*