# WRK | World Knowledge vs Airport Codes Map

The clearest difference is in-app purchases: WRK | World Knowledge at none against Airport Codes Map's 1. Airport Codes Map's advantage is update cadence (every 5 days vs every 26 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Airport Codes Map sells 1 one-off in-app purchase. WRK | World Knowledge asks for nothing beyond the download.

WRK | World Knowledge ships an update every 26 months, Airport Codes Map every 5 days. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | WRK | World Knowledge | Airport Codes Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 5 days** |
| Size | 478 MB | 89 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ilonka Rebergen](https://appshunter.io/developer/1703726435) | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) |

## What reviewers say

### WRK | World Knowledge

[App page](https://appshunter.io/ios/app/wrk-world-knowledge/id6462980820)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Airport Codes Map

[App page](https://appshunter.io/ios/app/airport-codes-map/id6785523641)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ワールドパック | $3.99 | one-time |


## Frequently asked questions

### Is WRK | World Knowledge free?

WRK | World Knowledge is free to download, with no in-app purchases.

### Is Airport Codes Map free?

Airport Codes Map is free to download, with in-app purchases available.

### Do WRK | World Knowledge or Airport Codes Map have ads?

Neither WRK | World Knowledge nor Airport Codes Map shows ads.

### Which is updated more often, WRK | World Knowledge or Airport Codes Map?

WRK | World Knowledge ships an update every 26 months, and Airport Codes Map every 5 days. Most recently, WRK | World Knowledge was updated on September 20, 2026 and Airport Codes Map on September 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.*