# BiliBuddy vs Red Book®

BiliBuddy and Red Book® both sit at 4.9 stars, but that hides the real split: 85% of BiliBuddy's written reviews are positive against 0% of Red Book®'s. BiliBuddy also leads on update cadence (every 4 weeks vs every 11 months) and ratings volume (258 vs 67). Red Book®'s advantage is ads (none vs shown). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. BiliBuddy sells 1 one-off in-app purchase and Red Book® sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for BiliBuddy against 4.8 for Red Book®. Both are backed by a comparable volume of ratings — 258 and 67 respectively. Written reviews are what separate them: 85% of BiliBuddy's written reviews are positive against 0% of Red Book®'s.

BiliBuddy ships an update every 4 weeks, Red Book® every 11 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | BiliBuddy | Red Book® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (258 ratings)](https://appshunter.io/ios/app/bilibuddy/id1173376805/reviews)** | [4.8 (67 ratings)](https://appshunter.io/ios/app/red-book/id1586673573/reviews) |
| Number of ratings | **258** | 67 |
| Positive reviews | **84.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 11 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 9 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Covenant Data Systems, LLC](https://appshunter.io/developer/1393847632) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### BiliBuddy

[App page](https://appshunter.io/ios/app/bilibuddy/id1173376805)

This app helps healthcare professionals determine the need for phototherapy or exchange therapy in newborns based on their age, bilirubin levels, and risk factors. It utilizes the latest American Academy of Pediatrics guidelines and displays results on interactive nomograms. The app also tracks infant data and provides links to relevant research.

**Highlights:** Calculates phototherapy threshold, Displays on nomograms, Calculates infant age, Views risk factors, Supports US and SI units, Tracks bilirubin measures

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $6.99 | one-time |


### 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 |


## Frequently asked questions

### Is BiliBuddy free?

BiliBuddy is free to download, with in-app purchases available.

### Is Red Book® free?

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

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

BiliBuddy is rated higher. BiliBuddy averages 4.9 out of 5 from 258 ratings, while Red Book® averages 4.8 from 67 ratings.

### Do BiliBuddy or Red Book® have ads?

BiliBuddy shows ads; Red Book® does not.

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

BiliBuddy ships an update every 4 weeks, and Red Book® every 11 months. Most recently, BiliBuddy was updated on October 14, 2026 and Red Book® on October 15, 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.*