# 知合移动办公 vs 中存OA

The clearest difference is iOS requirement: 知合移动办公 at 9.0 against 中存OA's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

知合移动办公 ships an update every 3 weeks, 中存OA monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 知合移动办公 | 中存OA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 67 MB | 32 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Chinity Holdings Co.,Ltd](https://appshunter.io/developer/1104320687) | [Zhongcun Big Data Technology Co., Ltd.](https://appshunter.io/developer/1616082137) |

## What reviewers say

### 知合移动办公

[App page](https://appshunter.io/ios/app/id1104320688)

**In-app purchases:** none


### 中存OA

[App page](https://appshunter.io/ios/app/oa/id1616082135)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知合移动办公 free?

知合移动办公 is free to download, with no in-app purchases.

### Is 中存OA free?

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

### Do 知合移动办公 or 中存OA have ads?

Neither 知合移动办公 nor 中存OA shows ads.

### Which is updated more often, 知合移动办公 or 中存OA?

知合移动办公 ships an update every 3 weeks, and 中存OA monthly. Most recently, 知合移动办公 was updated on November 2, 2026 and 中存OA on November 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.*