# CCHD PulseOx screening vs STI Tx Guide

The clearest difference is rating: CCHD PulseOx screening at 5.0 against STI Tx Guide's 3.5. CCHD PulseOx screening also leads on iOS requirement (12.0 vs 15.0). STI Tx Guide's advantage is update cadence (every 2 months vs every 22 months) and ratings volume (36 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CCHD PulseOx screening holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: STI Tx Guide has 36 ratings behind it against 1, so its average is the more settled of the two.

CCHD PulseOx screening ships an update every 22 months, STI Tx Guide every 2 months. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CCHD PulseOx screening | STI Tx Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cchd-pulseox-screening/id567756249/reviews)** | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) |
| Number of ratings | 1 | **36** |
| Positive reviews | — | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 33 MB | 36 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Children's Healthcare of Atlanta, Inc.](https://appshunter.io/developer/1034460531) | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) |

## What reviewers say

### CCHD PulseOx screening

[App page](https://appshunter.io/ios/app/cchd-pulseox-screening/id567756249)

This app assists healthcare professionals in performing pulse oximetry screenings for newborns to detect critical congenital heart defects. Developed by Children's Healthcare of Atlanta, its algorithm is endorsed by leading medical organizations.

**Highlights:** Pulse oximetry screening implementation, Congenital heart defect detection, Newborn nursery aid, Endorsed algorithm, Healthcare professional tool

**Features:** macOS Compatibility

**In-app purchases:** none


### STI Tx Guide

[App page](https://appshunter.io/ios/app/sti-tx-guide/id655206856)

Provides healthcare professionals with up-to-date, evidence-based recommendations for the prevention, diagnosis, and treatment of sexually transmitted infections. Features include clinical care guidance, sexual history resources, and patient materials for effective patient management.

**Highlights:** STI prevention recommendations, Diagnosis guidance, Treatment protocols, Clinical care assistance, Sexual history resources, Patient management tools

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

**In-app purchases:** none


## Frequently asked questions

### Is CCHD PulseOx screening free?

CCHD PulseOx screening is free to download, with no in-app purchases.

### Is STI Tx Guide free?

STI Tx Guide is free to download, with no in-app purchases.

### Which has better reviews, CCHD PulseOx screening or STI Tx Guide?

CCHD PulseOx screening is rated higher. CCHD PulseOx screening averages 5.0 out of 5 from 1 ratings, while STI Tx Guide averages 3.5 from 36 ratings.

### Do CCHD PulseOx screening or STI Tx Guide have ads?

Neither CCHD PulseOx screening nor STI Tx Guide shows ads.

### Which is updated more often, CCHD PulseOx screening or STI Tx Guide?

CCHD PulseOx screening ships an update every 22 months, and STI Tx Guide every 2 months. Most recently, CCHD PulseOx screening was updated on October 4, 2026 and STI Tx Guide on October 17, 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.*