# Inner Ear ID vs IR Books

The clearest difference is review sentiment: IR Books at 55% against Inner Ear ID's 0%. IR Books also leads on price (Free vs $4.99) and rating (3.2 vs 1.0). Inner Ear ID's advantage is iOS requirement (11.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

IR Books is free to download; Inner Ear ID costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IR Books holds the better App Store score, 3.2 against 1.0. That said, the two scores are not equally well evidenced: IR Books has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Inner Ear ID's written reviews are positive against 55% of IR Books's.

Inner Ear ID ships an update every 40 months, IR Books monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Inner Ear ID | IR Books |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/inner-ear-id/id674287583/reviews) | **[3.2 (21 ratings)](https://appshunter.io/ios/app/ir-books/id1484973704/reviews)** |
| Number of ratings | 1 | **21** |
| Positive reviews | 0.0% of reviews | **54.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Monthly** |
| Monetization | Paid | **Free** |
| Size | 25 MB | 150 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Tree Publishing, Inc.](https://appshunter.io/developer/496143325) | [Library Ideas, LLC](https://appshunter.io/developer/485015788) |

## What reviewers say

### Inner Ear ID

[App page](https://appshunter.io/ios/app/inner-ear-id/id674287583)

Explore detailed 3D models and animations of the human ear's inner structures. Interactive features allow for identification, exploration, and annotation of anatomical parts. Ideal for students, patients, and educators seeking a visual learning tool.

**Highlights:** Interactive 3D ear anatomy models, Detailed animations of ear structures, Structure identification with descriptions, Two-finger zoom and pan functionality, Drawing whiteboard with text and eraser, Screenshot capture for sharing

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

**In-app purchases:** none


### IR Books

[App page](https://appshunter.io/ios/app/ir-books/id1484973704)

This app combines traditional books with virtual and augmented reality to create an immersive learning experience for young readers. Explore topics like space, animals, and geography through interactive content. Designed for K-7 students, it offers a new way to engage with educational material.

**Highlights:** Virtual Reality integration, Augmented Reality integration, Interactive learning experiences, Educational content for K-7, Topics include space, animals, geography, Combines physical books with digital content

**In-app purchases:** none


## Frequently asked questions

### Is Inner Ear ID free?

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

### Is IR Books free?

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

### Which has better reviews, Inner Ear ID or IR Books?

IR Books is rated higher. Inner Ear ID averages 1.0 out of 5 from 1 ratings, while IR Books averages 3.2 from 21 ratings.

### Do Inner Ear ID or IR Books have ads?

Neither Inner Ear ID nor IR Books shows ads.

### Which is updated more often, Inner Ear ID or IR Books?

Inner Ear ID ships an update every 40 months, and IR Books monthly. Most recently, Inner Ear ID was updated on October 23, 2026 and IR Books on October 24, 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.*