# Red Book® vs Scolio

The clearest difference is in-app purchases: Scolio at none against Red Book®'s 2. Scolio also leads on rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.0). Red Book®'s advantage is ratings volume (67 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Red Book® sells 2 one-off in-app purchases. Scolio asks for nothing beyond the download.

Scolio holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Red Book® has 67 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | Red Book® | Scolio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (67 ratings)](https://appshunter.io/ios/app/red-book/id1586673573/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/scolio-digital-scoliometer/id6478386576/reviews)** |
| Number of ratings | **67** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 7 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Freely Bee](https://appshunter.io/developer/1824925156) |

## What reviewers say

### Red Book®

[App page](https://appshunter.io/ios/app/red-book/id1586673573)

This app provides the latest information on pediatric infectious diseases from the American Academy of Pediatrics. It includes immunization schedules, vaccine status, influenza resources, and new chapters on COVID-19 and Mpox. Features like note-taking and enhanced search aid quick access to essential medical data.

**Highlights:** Immunization schedules, Vaccine status table, Influenza resources, COVID-19 and Mpox chapters, Note-taking and highlighting, Enhanced search functionality

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Red Book 32e | $99.99 | one-time |
| Red Book | $99.99 | one-time |


### Scolio

[App page](https://appshunter.io/ios/app/scolio-digital-scoliometer/id6478386576)

This medical tool uses smartphone technology to measure spinal curvatures for scoliosis management. It offers a simple, digital approach to assessing scoliosis, intended for personal use or with professional guidance. The app is free and available on iOS devices.

**Highlights:** Digital scoliometer functionality, Measures spinal curvatures, Utilizes smartphone technology, Aids in scoliosis management, Free to download and use

**In-app purchases:** none


## Frequently asked questions

### Is Red Book® free?

Red Book® is free to download, with in-app purchases available.

### Is Scolio free?

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

### Which has better reviews, Red Book® or Scolio?

Scolio is rated higher. Red Book® averages 4.8 out of 5 from 67 ratings, while Scolio averages 5.0 from 2 ratings.

### Do Red Book® or Scolio have ads?

Neither Red Book® nor Scolio shows ads.

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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.*