# PedsGuide vs COSA

The clearest difference is rating: PedsGuide at 5.0 against COSA's 3.7. PedsGuide also leads on ads (none vs shown) and monetization model (free vs ad-supported). COSA's advantage is iOS requirement (11.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PedsGuide holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 9 and 3 respectively.

PedsGuide ships an update every 2 months, COSA every 3 months. The most recent releases landed on July 4, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PedsGuide | COSA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pedsguide/id1094742963/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/cosa-medication-information/id1626158440/reviews) |
| Number of ratings | **9** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Ad-supported |
| Size | 43 MB | 28 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Children's Mercy Hospital](https://appshunter.io/developer/404104913) | [MEDICAL EDUCATION RESOURCES, LLC](https://appshunter.io/developer/1561046509) |

## What reviewers say

### PedsGuide

[App page](https://appshunter.io/ios/app/pedsguide/id1094742963)

This app provides evidence-based pediatric clinical support guidelines for healthcare providers. It offers interactive, step-by-step decision support for managing acute childhood illnesses, designed by a clinical team for efficient care management.

**Highlights:** Evidence-based pediatric clinical guidelines, Interactive step-by-step decision support, Reference material and contextually relevant information, Designed by interdisciplinary clinical team, Human Factors methodology for efficient interface, Quick-call feature for Children's Mercy Contact Center

**In-app purchases:** none


### COSA

[App page](https://appshunter.io/ios/app/cosa-medication-information/id1626158440)

Access essential drug information and advanced patient resources. This app provides a portion of licensed drug data from a leading healthcare information provider, based on industry-standard databases.

**Highlights:** Essential drug information, Advanced patient resources, Licensed drug data, Industry-standard databases, Physician-focused resources

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PedsGuide free?

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

### Is COSA free?

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

### Which has better reviews, PedsGuide or COSA?

PedsGuide is rated higher. PedsGuide averages 5.0 out of 5 from 9 ratings, while COSA averages 3.7 from 3 ratings.

### Do PedsGuide or COSA have ads?

COSA shows ads; PedsGuide does not.

### Which is updated more often, PedsGuide or COSA?

PedsGuide ships an update every 2 months, and COSA every 3 months. Most recently, PedsGuide was updated on July 4, 2026 and COSA on September 10, 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.*