# K vs K

The clearest difference is ads: K at none against K's shown. K's advantage is update cadence (every 4 days vs every 5 months) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. K sells 3 one-off in-app purchases and K sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

K ships an update every 5 months, K every 4 days. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | K | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (127 ratings)](https://appshunter.io/ios/app/k-test/id1465986606/reviews)** | — |
| Number of ratings | **127** | — |
| Positive reviews | 41.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 64 MB | 82 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vitalii Ruba](https://appshunter.io/developer/1465986605) | [Oleksandr Buhai](https://appshunter.io/developer/6806862009) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-test/id1465986606)

Prepare for medical licensing exams with a mobile application offering practice questions. Access study materials anytime, anywhere on your smartphone or tablet.

**Highlights:** Practice Krok exam questions, Study anytime, anywhere, Mobile accessibility, Targeted exam preparation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ad | $0.99 | one-time |
| Remove ad | $4.99 | one-time |
| Remove ad | $9.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-test-krok-123mb-tests/id6806862007)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $4.99 | per month |
| Premium Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is K free?

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

### Is K free?

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

### Do K or K have ads?

K shows ads; K does not.

### Which is updated more often, K or K?

K ships an update every 5 months, and K every 4 days. Most recently, K was updated on October 29, 2026 and K on October 8, 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.*