# 通达OA vs AOTAI Copilot

The clearest difference is update cadence: AOTAI Copilot at every 3 days against 通达OA's every 9 days. 通达OA's advantage is iOS requirement (13 vs 15.0). 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.

通达OA ships an update every 9 days, AOTAI Copilot every 3 days. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 通达OA | AOTAI Copilot |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 17.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 210 MB | 17 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [北京通达信科科技有限公司](https://appshunter.io/developer/1018115125) | [Shandong Aotai Electric Co. Ltd](https://appshunter.io/developer/973393830) |

## What reviewers say

### 通达OA

[App page](https://appshunter.io/ios/app/oa/id1476669086)

This mobile application provides a networked intelligent office system for businesses. It offers features like email, announcements, scheduling, and workflow management to enhance productivity.

**Highlights:** Email, Announcements, Schedule Management, Contact Directory, Workflow, Micro-messages

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

**In-app purchases:** none


### AOTAI Copilot

[App page](https://appshunter.io/ios/app/aotai-copilot/id6761880347)

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

**In-app purchases:** none


## Frequently asked questions

### Is 通达OA free?

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

### Is AOTAI Copilot free?

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

### Do 通达OA or AOTAI Copilot have ads?

Neither 通达OA nor AOTAI Copilot shows ads.

### Which is updated more often, 通达OA or AOTAI Copilot?

通达OA ships an update every 9 days, and AOTAI Copilot every 3 days. Most recently, 通达OA was updated on October 8, 2026 and AOTAI Copilot on September 30, 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.*