# 心通达OA vs 一应必达

The clearest difference is update cadence: 一应必达 at monthly against 心通达OA's every 5 months. 一应必达 also leads on iOS requirement (13.0 vs 15.6). 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.

心通达OA ships an update every 5 months, 一应必达 monthly. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 心通达OA | 一应必达 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/oa/id1303449816/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 72 MB | 214 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [波 高](https://appshunter.io/developer/964019392) | [一应科技](https://appshunter.io/developer/1484306407) |

## What reviewers say

### 心通达OA

[App page](https://appshunter.io/ios/app/oa/id1303449816)

This intelligent OA platform leverages cloud computing, AI, and big data to enhance traditional office operations. It focuses on system integration, industry applications, and smart workflow engines to support smart city cloud platforms and create efficient collaborative environments for organizations.

**Highlights:** Cloud-based SaaS architecture, AI, Big Data, and Machine Learning integration, Smart workflow engine, PaaS development platform, Mobile office support, Supports private cloud deployment, Multi-tenancy and multi-language support

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

**In-app purchases:** none


### 一应必达

[App page](https://appshunter.io/ios/app/id6444039966)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 心通达OA free?

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

### Is 一应必达 free?

一应必达 is free to download, with no in-app purchases.

### Do 心通达OA or 一应必达 have ads?

Neither 心通达OA nor 一应必达 shows ads.

### Which is updated more often, 心通达OA or 一应必达?

心通达OA ships an update every 5 months, and 一应必达 monthly. Most recently, 心通达OA was updated on November 4, 2026 and 一应必达 on November 7, 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.*