# VisualDx vs ACOG

The clearest difference is rating: ACOG at 4.9 against VisualDx's 4.4. ACOG also leads on in-app purchases (none vs 11) and ratings volume (6.3K vs 186). VisualDx's advantage is update cadence (fortnightly vs every 3 months) and chart position (#19 vs unranked). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. VisualDx sells 11 in-app purchases, starting at $39.99 per month. ACOG asks for nothing beyond the download.

ACOG holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: ACOG has 6.3K ratings behind it against 186, so its average is the more settled of the two. Written reviews point the same way: 84% of VisualDx's written reviews are positive against 90% of ACOG's.

VisualDx ships an update fortnightly, ACOG every 3 months. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | VisualDx | ACOG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (186 ratings)](https://appshunter.io/ios/app/visualdx/id348177521/reviews) | **[4.9 (6.3K ratings)](https://appshunter.io/ios/app/acog/id616323665/reviews)** |
| Number of ratings | 186 | **6.3K** |
| Positive reviews | 84.3% of reviews | **89.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Subscription | **Free** |
| Best chart rank | **#19** | — |
| Size | 220 MB | 29 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Logical Images](https://appshunter.io/developer/348177524) | [Fountainhead Mobile Solutions](https://appshunter.io/developer/1113758990) |

## What reviewers say

### VisualDx

[App page](https://appshunter.io/ios/app/visualdx/id348177521)

**Currently charting:** #19 Top Grossing · Medical (US App Store)

This visual reference tool aids medical professionals in improving patient engagement and diagnostic accuracy. It utilizes AI and a vast image atlas to help build custom differentials, share patient-specific images, and access comprehensive diagnostic information. Earn continuing education credits while making better medical decisions.

**Highlights:** Build custom differentials, Engage patients with visual aids, Improve diagnostic accuracy, Access therapy and test options, Recognize infectious diseases, Earn CME credits

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Complete (1 Month) | $39.99 | per month |
| VisualDx Core Monthly | $39.99 | per month |
| Complete+DermExpert (1 Month) | $49.99 | per month |
| VisualDx Elite Monthly | $49.99 | per month |
| Add DermExpert (1 Year) | $99.99 | per year |
| Complete (1 Year) | $149.99 | per year |
| VisualDx Core Annual | $249.99 | per year |
| VisualDx Elite Annual | $299.99 | per year |
| Complete+DermExpert (1 Year) | $499.99 | per year |
| Add DermExpert (1 yr) | $99.99 | one-time |
| Complete (1 yr) | $399.99 | one-time |

**What reviewers like**

- 📸 Excellent clinical images and kodachromes
- 👍 User-friendly interface and easy navigation
- 🎓 Comprehensive differential diagnosis tool
- 📚 Detailed disease summaries and treatment information
- 🌍 Inclusive representation of skin of color

**What reviewers complain about**

- 💰 Expensive subscription cost
- ❌ Difficult subscription cancellation process
- 🐛 App crashes and performance issues
- 📱 Quiz feature laggy and unreliable
- 😤 Poor customer service responsiveness

**Reported bugs**

- App crashes when using quiz feature
- CME credit claiming functionality fails
- Subscription cancellation not processed
- Renewal charges despite cancellation requests
- Quiz unable to load properly

**Requested features**

- Make app free again (previously free)
- Simplify subscription cancellation in-app
- Improve quiz functionality for mobile
- Add quiz feature to desktop version
- Expand patient information handouts


### 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


## Frequently asked questions

### Is VisualDx free?

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

### Is ACOG free?

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

### Which has better reviews, VisualDx or ACOG?

ACOG is rated higher. VisualDx averages 4.4 out of 5 from 186 ratings, while ACOG averages 4.9 from 6.3K ratings.

### Do VisualDx or ACOG have ads?

Neither VisualDx nor ACOG shows ads.

### Which is updated more often, VisualDx or ACOG?

VisualDx ships an update fortnightly, and ACOG every 3 months. Most recently, VisualDx was updated on October 19, 2026 and ACOG on October 18, 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.*