# Karyotyping vs Learn Immune System

The clearest difference is price: Karyotyping at Free against Learn Immune System's $2.99. Karyotyping also leads on update cadence (every 10 months vs every 36 months). Learn Immune System's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 13.0). On ads and in-app purchases there is nothing between them.

Karyotyping is free to download; Learn Immune System costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Karyotyping ships an update every 10 months, Learn Immune System every 36 months. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Karyotyping | Learn Immune System |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 36 months |
| Size | 40 MB | 16 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Carolina Biological Supply](https://appshunter.io/developer/413708533) | [Nurten PIRLI](https://appshunter.io/developer/1495958705) |

## What reviewers say

### Karyotyping

[App page](https://appshunter.io/ios/app/karyotyping/id815602469)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Immune System

[App page](https://appshunter.io/ios/app/learn-immune-system/id1502997625)

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

**In-app purchases:** none


## Frequently asked questions

### Is Karyotyping free?

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

### Is Learn Immune System free?

Learn Immune System costs $2.99, with no in-app purchases.

### Do Karyotyping or Learn Immune System have ads?

Neither Karyotyping nor Learn Immune System shows ads.

### Which is updated more often, Karyotyping or Learn Immune System?

Karyotyping ships an update every 10 months, and Learn Immune System every 36 months. Most recently, Karyotyping was updated on October 12, 2026 and Learn Immune System on October 15, 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.*