# Tacit OA vs 舒尔特那些事

The clearest difference is price: Tacit OA at Free against 舒尔特那些事's $6.99. Tacit OA also leads on in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Tacit OA is free to download; 舒尔特那些事 costs $6.99 up front. 舒尔特那些事 sells 1 one-off in-app purchase. Tacit OA asks for nothing beyond the download.

Tacit OA ships an update every 3 weeks, 舒尔特那些事 monthly. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Tacit OA | 舒尔特那些事 |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 154 MB | 41 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jiu Tian Yun Technology (wuhan) Limited Company](https://appshunter.io/developer/1554438567) | [云鹏 夏](https://appshunter.io/developer/1716366341) |

## What reviewers say

### Tacit OA

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 舒尔特那些事

[App page](https://appshunter.io/ios/app/id6472008242)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock full version | $2.99 | one-time |


## Frequently asked questions

### Is Tacit OA free?

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

### Is 舒尔特那些事 free?

舒尔特那些事 costs $6.99, and also offers in-app purchases.

### Do Tacit OA or 舒尔特那些事 have ads?

Neither Tacit OA nor 舒尔特那些事 shows ads.

### Which is updated more often, Tacit OA or 舒尔特那些事?

Tacit OA ships an update every 3 weeks, and 舒尔特那些事 monthly. Most recently, Tacit OA was updated on October 25, 2026 and 舒尔特那些事 on October 11, 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.*