# Siren vs 坚裹帮

The clearest difference is update cadence: 坚裹帮 at every 3 months against Siren's every 9 months. 坚裹帮 also leads on iOS requirement (12.0 vs 16.0). 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.

Siren ships an update every 9 months, 坚裹帮 every 3 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Siren | 坚裹帮 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 1 MB | 144 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Apple Inc.](https://appshunter.io/developer/284417353) | [Shenzhen Guoguo Technology Co., Ltd.](https://appshunter.io/developer/1644856150) |

## What reviewers say

### Siren

[App page](https://appshunter.io/ios/app/siren/id1635862301)

**Features:** Apple Watch app

**In-app purchases:** none


### 坚裹帮

[App page](https://appshunter.io/ios/app/id1644856809)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Siren free?

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

### Is 坚裹帮 free?

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

### Do Siren or 坚裹帮 have ads?

Neither Siren nor 坚裹帮 shows ads.

### Which is updated more often, Siren or 坚裹帮?

Siren ships an update every 9 months, and 坚裹帮 every 3 months. Most recently, Siren was updated on November 3, 2026 and 坚裹帮 on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*