# Pi vs 国盾密邮

The clearest difference is update cadence: Pi at every 11 days against 国盾密邮's every 4 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.

Pi ships an update every 11 days, 国盾密邮 every 4 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Pi | 国盾密邮 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/pi-lab/id6633428384/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 4 months |
| Monetization | Free | — |
| Size | 68 MB | 29 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [湖北鄂仪国际贸易有限公司](https://appshunter.io/developer/1762586431) | [山东量子科学技术研究院有限公司](https://appshunter.io/developer/1698287832) |

## What reviewers say

### Pi

[App page](https://appshunter.io/ios/app/pi-lab/id6633428384)

This utility app focuses on bug fixes and performance improvements. It aims to provide a more stable and reliable user experience by addressing known issues. The latest update ensures smoother operation.

**Highlights:** Bug fixes, Performance improvements, Enhanced stability, Smoother operation

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

**In-app purchases:** none


### 国盾密邮

[App page](https://appshunter.io/ios/app/id6742765795)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pi free?

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

### Is 国盾密邮 free?

国盾密邮 is free to download, with no in-app purchases.

### Do Pi or 国盾密邮 have ads?

Neither Pi nor 国盾密邮 shows ads.

### Which is updated more often, Pi or 国盾密邮?

Pi ships an update every 11 days, and 国盾密邮 every 4 months. Most recently, Pi was updated on October 30, 2026 and 国盾密邮 on October 30, 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.*