# ACOG vs Prevent Group B Strep(GBS)

The clearest difference is rating: ACOG at 4.9 against Prevent Group B Strep(GBS)'s 3.7. ACOG also leads on ratings volume (6.3K vs 6) and update cadence (every 3 months vs every 15 months). Prevent Group B Strep(GBS)'s advantage is iOS requirement (11.0 vs 17.0). 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.

ACOG holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: ACOG has 6.3K ratings behind it against 6, 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 75% of Prevent Group B Strep(GBS)'s.

ACOG ships an update every 3 months, Prevent Group B Strep(GBS) every 15 months. The most recent releases landed on October 18, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ACOG | Prevent Group B Strep(GBS) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (6.3K ratings)](https://appshunter.io/ios/app/acog/id616323665/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/prevent-group-b-strepgbs/id689290789/reviews) |
| Number of ratings | **6.3K** | 6 |
| Positive reviews | **89.6% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 15 months |
| Monetization | Free | Free |
| Size | 29 MB | 27 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Fountainhead Mobile Solutions](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

**Features:** Vision Pro support

**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


### Prevent Group B Strep(GBS)

[App page](https://appshunter.io/ios/app/prevent-group-b-strepgbs/id689290789)

This medical app provides customized, evidence-based recommendations for preventing neonatal Group B Strep (GBS) disease. It offers optimal antibiotic suggestions based on maternal and neonatal clinical information.

**Highlights:** Customized GBS prevention recommendations, Evidence-based clinical guidance, Optimal antibiotic recommendations, Neonatal GBS disease prevention, Maternal and neonatal clinical information

**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 Prevent Group B Strep(GBS) free?

Prevent Group B Strep(GBS) is free to download, with no in-app purchases.

### Which has better reviews, ACOG or Prevent Group B Strep(GBS)?

ACOG is rated higher. ACOG averages 4.9 out of 5 from 6.3K ratings, while Prevent Group B Strep(GBS) averages 3.7 from 6 ratings.

### Do ACOG or Prevent Group B Strep(GBS) have ads?

Neither ACOG nor Prevent Group B Strep(GBS) shows ads.

### Which is updated more often, ACOG or Prevent Group B Strep(GBS)?

ACOG ships an update every 3 months, and Prevent Group B Strep(GBS) every 15 months. Most recently, ACOG was updated on October 18, 2026 and Prevent Group B Strep(GBS) on September 27, 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.*