# Pediatric OnCall vs Red Book®

The clearest difference is review sentiment: Pediatric OnCall at 64% against Red Book®'s 0%. Pediatric OnCall also leads on in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 11 months). Red Book®'s advantage is rating (4.8 vs 4.1) and chart position (#196 vs unranked). On price, ratings volume, ads and device support there is nothing between them.

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

Red Book® holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 63 and 67 respectively. Written reviews complicate that: 64% of Pediatric OnCall's written reviews are positive against 0% of Red Book®'s, so the app with the better star average is not the one people write more warmly about.

Pediatric OnCall ships an update every 3 weeks, Red Book® every 11 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Pediatric OnCall | Red Book® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (63 ratings)](https://appshunter.io/ios/app/pediatric-oncall/id577709142/reviews) | **[4.8 (67 ratings)](https://appshunter.io/ios/app/red-book/id1586673573/reviews)** |
| Number of ratings | 63 | **67** |
| Positive reviews | **64.3% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#196** |
| Size | 155 MB | 9 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 17+ |
| Developer | [Pediatric Oncall Private Limited](https://appshunter.io/developer/570911704) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Pediatric OnCall

[App page](https://appshunter.io/ios/app/pediatric-oncall/id577709142)

This app offers healthcare professionals essential tools for daily practice, including disease information, medical calculators, drug references, and diagnostic aids. It connects to a comprehensive medical website, providing access to a wealth of pediatric health resources and expert advice.

**Highlights:** Diseases and Conditions database, Over 45 Medical Calculators, Drug and Poisoning Information, MCQ Quizzes for knowledge testing, Ask a Doctor feature, Vaccination tracking and reminders, Differential Diagnosis tool

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

**In-app purchases:** none


### Red Book®

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

**Currently charting:** #196 Top Grossing · Medical (US App Store)

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 |


## Frequently asked questions

### Is Pediatric OnCall free?

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

### Is Red Book® free?

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

### Which has better reviews, Pediatric OnCall or Red Book®?

Red Book® is rated higher. Pediatric OnCall averages 4.1 out of 5 from 63 ratings, while Red Book® averages 4.8 from 67 ratings.

### Do Pediatric OnCall or Red Book® have ads?

Neither Pediatric OnCall nor Red Book® shows ads.

### Which is updated more often, Pediatric OnCall or Red Book®?

Pediatric OnCall ships an update every 3 weeks, and Red Book® every 11 months. Most recently, Pediatric OnCall was updated on October 14, 2026 and Red Book® on October 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.*