# ACOG vs STI Tx Guide

The clearest difference is review sentiment: ACOG at 90% against STI Tx Guide's 36%. ACOG also leads on rating (4.9 vs 3.5) and ratings volume (6.3K vs 36). STI Tx Guide's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

ACOG holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: ACOG has 6.3K ratings behind it against 36, so its average is the more settled of the two. Written reviews point the same way: 90% of ACOG's written reviews are positive against 36% of STI Tx Guide's.

ACOG ships an update every 3 months, STI Tx Guide every 2 months. The most recent releases landed on September 23, 2026 and August 28, 2026 respectively.

## The numbers

| Metric | ACOG | STI Tx Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (6.3K ratings)](https://appshunter.io/ios/app/acog/id616323665/reviews)** | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) |
| Number of ratings | **6.3K** | 36 |
| Positive reviews | **89.6% of reviews** | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 28 MB | 36 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Fountainhead Mobile Solutions LLC](https://appshunter.io/developer/1113758990) | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) |

## What reviewers say

### ACOG

[App page](https://appshunter.io/ios/app/acog/id616323665)

This app provides obstetricians and gynecologists with essential tools and resources for women's healthcare. Access clinical guidelines, practice advisories, and helpful calculators to support your medical practice.

**Highlights:** EDD Calculator, Indicated Delivery tool (members only), Clinical Consensus documents, Clinical Practice Guidelines, Practice Advisories

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick access to clinical guidance
- 👍 Well-organized and easy to navigate
- 🔍 Convenient way to stay up-to-date with guidelines
- ⚡ Essential for OB-GYNs and providers
- 📚 Excellent resource for clinical reference

**What reviewers complain about**

- 🐛 Occasional crashes and compatibility issues
- 🔍 Could use more advanced search functionality
- 👨‍⚕️ Requires ACOG membership to access full features

**Reported bugs**

- App crashes on launch after updates
- Compatibility issues with older iOS versions

**Requested features**

- Bishop score calculator
- More extensive search engine
- Improved user interface


### 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 ACOG free?

ACOG 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, ACOG or STI Tx Guide?

ACOG is rated higher. ACOG averages 4.9 out of 5 from 6.3K ratings, while STI Tx Guide averages 3.5 from 36 ratings.

### Do ACOG or STI Tx Guide have ads?

Neither ACOG nor STI Tx Guide shows ads.

### Which is updated more often, ACOG or STI Tx Guide?

ACOG ships an update every 3 months, and STI Tx Guide every 2 months. Most recently, ACOG was updated on September 23, 2026 and STI Tx Guide on August 28, 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.*