# VisualDx vs X

The clearest difference is rating: X at 5.0 against VisualDx's 4.4. X also leads on in-app purchases (none vs 11). VisualDx's advantage is ratings volume (186 vs 1) and chart position (#14 vs unranked). On price, update cadence, 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. X asks for nothing beyond the download.

X holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: VisualDx has 186 ratings behind it against 1, so its average is the more settled of the two.

VisualDx ships an update fortnightly, X every 8 days. Both last shipped on November 1, 2026.

## The numbers

| Metric | VisualDx | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (186 ratings)](https://appshunter.io/ios/app/visualdx/id348177521/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/x-plain/id898690322/reviews)** |
| Number of ratings | **186** | 1 |
| Positive reviews | 84.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Subscription | **Free** |
| Best chart rank | **#14** | — |
| Size | 220 MB | 2 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Logical Images](https://appshunter.io/developer/348177524) | [PATIENT EDUCATION INSTITUTE INC](https://appshunter.io/developer/889646362) |

## What reviewers say

### VisualDx

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

**Currently charting:** #14 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


### X

[App page](https://appshunter.io/ios/app/x-plain/id898690322)

This medical education app offers a vast library of narrated tutorials covering numerous specialties. It's designed for healthcare settings to help patients understand medical conditions and treatments through interactive learning.

**Highlights:** Narrated educational tutorials, Interactive quizzes with feedback, Covers 35 medical specialties, Over 1100 English titles, Over 500 Spanish titles, Self-paced learning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VisualDx free?

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

### Is X free?

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

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

X is rated higher. VisualDx averages 4.4 out of 5 from 186 ratings, while X averages 5.0 from 1 ratings.

### Do VisualDx or X have ads?

Neither VisualDx nor X shows ads.

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

VisualDx ships an update fortnightly, and X every 8 days. Most recently, VisualDx was updated on November 1, 2026 and X on November 1, 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.*