# 连我牛牛 vs Flashduty

The clearest difference is update cadence: 连我牛牛 at every 5 weeks against Flashduty's every 4 months. 连我牛牛 also leads on iOS requirement (10.0 vs 15.1). 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.

连我牛牛 ships an update every 5 weeks, Flashduty every 4 months. The most recent releases landed on October 9, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | 连我牛牛 | Flashduty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 10 MB | 43 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LinkWorld Inc.](https://appshunter.io/developer/1600288876) | [Beijing Flashcat Cloud Technology Co.,Ltd.](https://appshunter.io/developer/1762798179) |

## What reviewers say

### 连我牛牛

[App page](https://appshunter.io/ios/app/id1603989815)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flashduty

[App page](https://appshunter.io/ios/app/flashduty/id6636480851)

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

**In-app purchases:** none


## Frequently asked questions

### Is 连我牛牛 free?

连我牛牛 is free to download, with no in-app purchases.

### Is Flashduty free?

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

### Do 连我牛牛 or Flashduty have ads?

Neither 连我牛牛 nor Flashduty shows ads.

### Which is updated more often, 连我牛牛 or Flashduty?

连我牛牛 ships an update every 5 weeks, and Flashduty every 4 months. Most recently, 连我牛牛 was updated on October 9, 2026 and Flashduty on September 27, 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.*