# aiwan 3+3 Postal Code vs 蝦米鍵盤3

The clearest difference is in-app purchases: aiwan 3+3 Postal Code at none against 蝦米鍵盤3's 2. aiwan 3+3 Postal Code also leads on iOS requirement (13.0 vs 15.6). 蝦米鍵盤3's advantage is ads (none vs shown) and update cadence (every 3 days vs every 37 months). On price and device support there is nothing between them.

Both are free to download. 蝦米鍵盤3 sells 2 in-app purchases, starting at $0.99 per 7 days. aiwan 3+3 Postal Code asks for nothing beyond the download.

aiwan 3+3 Postal Code ships an update every 37 months, 蝦米鍵盤3 every 3 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | aiwan 3+3 Postal Code | 蝦米鍵盤3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Every 3 days** |
| Size | 28 MB | 66 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chengchung Chiu](https://appshunter.io/developer/1359094944) | [IFAN CHU](https://appshunter.io/developer/582126445) |

## What reviewers say

### aiwan 3+3 Postal Code

[App page](https://appshunter.io/ios/app/aiwan-3-plus-3-postal-code/id1524433635)

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

**In-app purchases:** none


### 蝦米鍵盤3

[App page](https://appshunter.io/ios/app/3/id6762563077)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI 助手 (每周) | $0.99 | per 7 days |
| 核心永久授權 | $9.99 | one-time |


## Frequently asked questions

### Is aiwan 3+3 Postal Code free?

aiwan 3+3 Postal Code is free to download, with no in-app purchases.

### Is 蝦米鍵盤3 free?

蝦米鍵盤3 is free to download, with in-app purchases available.

### Do aiwan 3+3 Postal Code or 蝦米鍵盤3 have ads?

aiwan 3+3 Postal Code shows ads; 蝦米鍵盤3 does not.

### Which is updated more often, aiwan 3+3 Postal Code or 蝦米鍵盤3?

aiwan 3+3 Postal Code ships an update every 37 months, and 蝦米鍵盤3 every 3 days. Most recently, aiwan 3+3 Postal Code was updated on November 7, 2026 and 蝦米鍵盤3 on November 9, 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.*