# K vs Korea Transit Card

The clearest difference is in-app purchases: Korea Transit Card at none against K's 1. Korea Transit Card also leads on update cadence (every 5 days vs every 9 days). K's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. K sells 1 in-app purchase, starting at $1.99 per year. Korea Transit Card asks for nothing beyond the download.

K ships an update every 9 days, Korea Transit Card every 5 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | K | Korea Transit Card |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 5 days** |
| Size | 20 MB | 11 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kitta Co.](https://appshunter.io/developer/1896674871) | [giseong kim](https://appshunter.io/developer/737273468) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-card-reader/id6770570934)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $1.99 | per year |


### Korea Transit Card

[App page](https://appshunter.io/ios/app/korea-transit-card/id6819716154)

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

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is Korea Transit Card free?

Korea Transit Card is free to download, with no in-app purchases.

### Do K or Korea Transit Card have ads?

Korea Transit Card shows ads; K does not.

### Which is updated more often, K or Korea Transit Card?

K ships an update every 9 days, and Korea Transit Card every 5 days. Most recently, K was updated on November 10, 2026 and Korea Transit Card on November 6, 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.*