# Human Anatomy vs Action Potentials

The clearest difference is price: Action Potentials at Free against Human Anatomy's $2.99. Action Potentials also leads on update cadence (every 3 weeks vs every 34 months). Human Anatomy's advantage is iOS requirement (11.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

Action Potentials is free to download; Human Anatomy costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Human Anatomy ships an update every 34 months, Action Potentials every 3 weeks. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Human Anatomy | Action Potentials |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.7 (13 ratings)](https://appshunter.io/ios/app/action-potentials/id1527893283/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 19 MB | 1 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Coskun CAKIR](https://appshunter.io/developer/1085525577) | [Beau Forest](https://appshunter.io/developer/1527893285) |

## What reviewers say

### Human Anatomy

[App page](https://appshunter.io/ios/app/human-anatomy-nervous-system/id1130787882)

Explore the intricate workings of the brain, spinal cord, and nerves. This app offers interactive learning tools, quizzes, and flashcards to help students and enthusiasts master the human nervous system.

**Highlights:** Interactive learning tools, Multiple choice and true/false quizzes, Flashcards for terms and knowledge, Offline access, Detailed performance statistics, Quiz review history

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

**In-app purchases:** none


### Action Potentials

[App page](https://appshunter.io/ios/app/action-potentials/id1527893283)

Explore the mechanics of action potentials in real-time. Adjust parameters and introduce various drugs to observe their impact on neuronal signaling. Choose between single event simulations or continuous manual current injections.

**Highlights:** Real-time action potential visualization, Adjustable simulation parameters, Drug effect simulation (lidocaine, tetrodotoxin, TEA), Single action potential mode, Continuous manual current injection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Human Anatomy free?

Human Anatomy costs $2.99, with no in-app purchases.

### Is Action Potentials free?

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

### Do Human Anatomy or Action Potentials have ads?

Neither Human Anatomy nor Action Potentials shows ads.

### Which is updated more often, Human Anatomy or Action Potentials?

Human Anatomy ships an update every 34 months, and Action Potentials every 3 weeks. Most recently, Human Anatomy was updated on October 20, 2026 and Action Potentials on October 11, 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.*