# Middle Ear ID vs Learn Nervous System

The clearest difference is price: Learn Nervous System at $2.99 against Middle Ear ID's $4.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Middle Ear ID costs $4.99 and Learn Nervous System $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Middle Ear ID ships an update every 38 months, Learn Nervous System every 36 months. The most recent releases landed on September 8, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Middle Ear ID | Learn Nervous System |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 36 months** |
| Size | 21 MB | 16 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Blue Tree Publishing, Inc.](https://appshunter.io/developer/496143325) | [Nurten PIRLI](https://appshunter.io/developer/1495958705) |

## What reviewers say

### Middle Ear ID

[App page](https://appshunter.io/ios/app/middle-ear-id/id674231677)

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

**In-app purchases:** none


### Learn Nervous System

[App page](https://appshunter.io/ios/app/learn-nervous-system/id1502220966)

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

**In-app purchases:** none


## Frequently asked questions

### Is Middle Ear ID free?

Middle Ear ID costs $4.99, with no in-app purchases.

### Is Learn Nervous System free?

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

### Do Middle Ear ID or Learn Nervous System have ads?

Neither Middle Ear ID nor Learn Nervous System shows ads.

### Which is updated more often, Middle Ear ID or Learn Nervous System?

Middle Ear ID ships an update every 38 months, and Learn Nervous System every 36 months. Most recently, Middle Ear ID was updated on September 8, 2026 and Learn Nervous System on August 13, 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.*