# aiwan 3+3 Postal Code vs PinNotes

The clearest difference is in-app purchases: aiwan 3+3 Postal Code at none against PinNotes's 2. aiwan 3+3 Postal Code also leads on iOS requirement (13.0 vs 17.0). PinNotes's advantage is ads (none vs shown) and update cadence (every 4 days vs every 37 months). On price and device support there is nothing between them.

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

aiwan 3+3 Postal Code ships an update every 37 months, PinNotes every 4 days. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | aiwan 3+3 Postal Code | PinNotes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Every 4 days** |
| Size | 28 MB | 33 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chengchung Chiu](https://appshunter.io/developer/1359094944) | [Sih Han Chen](https://appshunter.io/developer/1795437122) |

## 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


### PinNotes

[App page](https://appshunter.io/ios/app/pinnotes-map-maker/id6741763217)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Access Monthly | $0.99 | per month |
| Plus Access Annual | $9.99 | per year |


## 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 PinNotes free?

PinNotes is free to download, with in-app purchases available.

### Do aiwan 3+3 Postal Code or PinNotes have ads?

aiwan 3+3 Postal Code shows ads; PinNotes does not.

### Which is updated more often, aiwan 3+3 Postal Code or PinNotes?

aiwan 3+3 Postal Code ships an update every 37 months, and PinNotes every 4 days. Most recently, aiwan 3+3 Postal Code was updated on September 8, 2026 and PinNotes on September 20, 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.*