# OAT vs 中存OA

The clearest difference is iOS requirement: OAT at 8.0 against 中存OA's 12.0. 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.

## The numbers

| Metric | OAT | 中存OA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 31 MB | 40 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广州协众软件科技有限公司](https://appshunter.io/developer/871815690) | [Zhongcun Big Data Technology Co., Ltd.](https://appshunter.io/developer/1616082137) |

## What reviewers say

### OAT

[App page](https://appshunter.io/ios/app/oat/id1544013006)

**Features:** macOS Compatibility

**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 OAT free?

OAT 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 OAT or 中存OA have ads?

Neither OAT nor 中存OA shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*