# Tacit OA vs My AED

The clearest difference is update cadence: Tacit OA at every 3 weeks against My AED's every 6 weeks. Tacit OA also leads on iOS requirement (11.0 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.

Tacit OA ships an update every 3 weeks, My AED every 6 weeks. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Tacit OA | My AED |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 154 MB | 100 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jiu Tian Yun Technology (wuhan) Limited Company](https://appshunter.io/developer/1554438567) | [久心医疗科技(苏州)有限公司](https://appshunter.io/developer/1822930768) |

## What reviewers say

### Tacit OA

[App page](https://appshunter.io/ios/app/tacit-oa/id1554438565)

**Features:** macOS Compatibility

**In-app purchases:** none


### My AED

[App page](https://appshunter.io/ios/app/my-aed/id6752660479)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tacit OA free?

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

### Is My AED free?

My AED is free to download, with no in-app purchases.

### Do Tacit OA or My AED have ads?

Neither Tacit OA nor My AED shows ads.

### Which is updated more often, Tacit OA or My AED?

Tacit OA ships an update every 3 weeks, and My AED every 6 weeks. Most recently, Tacit OA was updated on October 10, 2026 and My AED on October 17, 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.*