# TWDIW vs 誰在亂搞？

The clearest difference is in-app purchases: TWDIW at none against 誰在亂搞？'s 2. TWDIW also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 誰在亂搞？ sells 2 in-app purchases, starting at $14.99 per year. TWDIW asks for nothing beyond the download.

TWDIW ships an update every 3 weeks, 誰在亂搞？ every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | TWDIW | 誰在亂搞？ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 200 MB | 45 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [數位發展部](https://appshunter.io/developer/1759963812) | [SZU-CHOU PENG](https://appshunter.io/developer/6774019431) |

## What reviewers say

### TWDIW

[App page](https://appshunter.io/ios/app/twdiw/id6742222992)

**In-app purchases:** none


### 誰在亂搞？

[App page](https://appshunter.io/ios/app/id6774019429)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF證據包年訂閱 | $14.99 | per year |
| PDF證據包 | $5.99 | one-time |


## Frequently asked questions

### Is TWDIW free?

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

### Is 誰在亂搞？ free?

誰在亂搞？ is free to download, with in-app purchases available.

### Do TWDIW or 誰在亂搞？ have ads?

Neither TWDIW nor 誰在亂搞？ shows ads.

### Which is updated more often, TWDIW or 誰在亂搞？?

TWDIW ships an update every 3 weeks, and 誰在亂搞？ every 2 weeks. Most recently, TWDIW was updated on October 30, 2026 and 誰在亂搞？ on November 5, 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.*