# 国盾密邮 vs Larktun

The clearest difference is in-app purchases: 国盾密邮 at none against Larktun's 1. Larktun's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Larktun sells 1 in-app purchase, starting at $19.99 per year. 国盾密邮 asks for nothing beyond the download.

国盾密邮 ships an update every 4 months, Larktun fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 国盾密邮 | Larktun |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 29 MB | 40 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [山东量子科学技术研究院有限公司](https://appshunter.io/developer/1698287832) | [Ningbo Xianyu Network Technology Co., Ltd](https://appshunter.io/developer/1896375200) |

## What reviewers say

### 国盾密邮

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

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

**In-app purchases:** none


### Larktun

[App page](https://appshunter.io/ios/app/larktun/id6767086284)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Larktun Annual Subscription | $19.99 | per year |


## Frequently asked questions

### Is 国盾密邮 free?

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

### Is Larktun free?

Larktun is free to download, with in-app purchases available.

### Do 国盾密邮 or Larktun have ads?

Neither 国盾密邮 nor Larktun shows ads.

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

国盾密邮 ships an update every 4 months, and Larktun fortnightly. Most recently, 国盾密邮 was updated on October 30, 2026 and Larktun on October 31, 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.*