# K vs Anatomix

The clearest difference is in-app purchases: K at none against Anatomix's 10. K also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Anatomix sells 10 one-off in-app purchases. K asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | K | Anatomix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (30 ratings)](https://appshunter.io/ios/app/anatomix-human-body-systems/id1479205230/reviews)** |
| Number of ratings | — | **30** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 117 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [BEEDEEZ](https://appshunter.io/developer/966951164) | [Sierra Chica Software SL](https://appshunter.io/developer/492684294) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-now/id966951165)

**Features:** macOS Compatibility

**In-app purchases:** none


### Anatomix

[App page](https://appshunter.io/ios/app/anatomix-human-body-systems/id1479205230)

Explore and learn the human body's systems through interactive quizzes. Designed for children to learn anatomy playfully, it covers all major systems and offers voiceover support for non-readers. Unlock complete content with a one-time payment for lifetime access.

**Highlights:** Learn human body systems, Interactive quizzes, Identify bones and muscles, Explore circulatory system, Voiceover for non-readers, Covers 11 body systems

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Respiratory System | $1.99 | one-time |
| Skeletal System | $1.99 | one-time |
| Muscular System | $1.99 | one-time |
| Digestive System | $1.99 | one-time |
| Urinary System | $1.99 | one-time |
| Circulatory System | $1.99 | one-time |
| Nervous System | $1.99 | one-time |
| Endocrine System | $1.99 | one-time |
| Reproductive System | $1.99 | one-time |
| Complete Collection | $12.99 | one-time |


## Frequently asked questions

### Is K free?

K is free to download, with no in-app purchases.

### Is Anatomix free?

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

### Do K or Anatomix have ads?

Neither K nor Anatomix shows ads.

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

K ships an update every 2 months, and Anatomix every 2 months. Most recently, K was updated on November 6, 2026 and Anatomix on November 7, 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.*