# 密九通 vs A办公

The clearest difference is ads: 密九通 at none against A办公's shown. On price, update cadence, 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.

密九通 ships an update every 11 months, A办公 every 14 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 密九通 | A办公 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 11 months** | Every 14 months |
| Size | 91 MB | 33 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ShenZhen AoLian Information Security Technology Co.,Ltd.](https://appshunter.io/developer/1580917948) | [南京龟兔赛跑软件研究院有限公司](https://appshunter.io/developer/1690118039) |

## What reviewers say

### 密九通

[App page](https://appshunter.io/ios/app/id1641821775)

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

**In-app purchases:** none


### A办公

[App page](https://appshunter.io/ios/app/a/id6449917905)

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

**In-app purchases:** none


## Frequently asked questions

### Is 密九通 free?

密九通 is free to download, with no in-app purchases.

### Is A办公 free?

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

### Do 密九通 or A办公 have ads?

A办公 shows ads; 密九通 does not.

### Which is updated more often, 密九通 or A办公?

密九通 ships an update every 11 months, and A办公 every 14 months. Most recently, 密九通 was updated on October 1, 2026 and A办公 on October 3, 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.*