# 密九邮箱 vs Post

The clearest difference is update cadence: Post at fortnightly against 密九邮箱's every 5 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.

密九邮箱 ships an update every 5 months, Post fortnightly. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 密九邮箱 | Post |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 43 MB | 80 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ShenZhen AoLian Information Security Technology Co.,Ltd.](https://appshunter.io/developer/1580917948) | [博司霖科技(宁波)有限公司](https://appshunter.io/developer/1780443510) |

## What reviewers say

### 密九邮箱

[App page](https://appshunter.io/ios/app/id1591371248)

**Features:** macOS Compatibility

**In-app purchases:** none


### Post

[App page](https://appshunter.io/ios/app/post-hi/id6738368050)

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

**In-app purchases:** none


## Frequently asked questions

### Is 密九邮箱 free?

密九邮箱 is free to download, with no in-app purchases.

### Is Post free?

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

### Do 密九邮箱 or Post have ads?

Neither 密九邮箱 nor Post shows ads.

### Which is updated more often, 密九邮箱 or Post?

密九邮箱 ships an update every 5 months, and Post fortnightly. Most recently, 密九邮箱 was updated on October 27, 2026 and Post on October 14, 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.*