# Dr. Lex vs Digi

The clearest difference is review sentiment: Dr. Lex at 100% against Digi's 0%. Dr. Lex also leads on rating (4.0 vs 3.7) and update cadence (every 3 weeks vs every 2 months). Digi's advantage is iOS requirement (12.0 vs 15.0). 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.

Dr. Lex holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews point the same way: 100% of Dr. Lex's written reviews are positive against 0% of Digi's.

Dr. Lex ships an update every 3 weeks, Digi every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Dr. Lex | Digi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/dr-lex-diagnosis-simulator/id1507739648/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/digi-ddx/id1571762764/reviews) |
| Number of ratings | **9** | 3 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 86 MB | 95 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [SYLEX SA](https://appshunter.io/developer/1507595942) | [OSF Healthcare System](https://appshunter.io/developer/1053621635) |

## What reviewers say

### Dr. Lex

[App page](https://appshunter.io/ios/app/dr-lex-diagnosis-simulator/id1507739648)

This interactive simulator trains medical professionals and students in advanced diagnostic skills using virtual patients and AI-powered decision support. Analyze cases, solve quizzes, and compete with others to sharpen your medical expertise.

**Highlights:** Virtual patient diagnosis simulator, AI clinical decision support, Interactive quizzes and difficulty levels, Competition events and rankings, Analysis of text and voice dictation cases, Reasoning for diagnostic suggestions

**Features:** macOS Compatibility

**In-app purchases:** none


### Digi

[App page](https://appshunter.io/ios/app/digi-ddx/id1571762764)

Practice diagnostic reasoning with simulated patient cases. Make informed decisions on diagnostic tests and patient management, comparing your efficiency and cost to experienced clinicians. Learn from feedback and access relevant literature.

**Highlights:** Simulated patient cases, Diagnostic test selection, Patient management choices, Cost comparison to experts, Clinical feedback, Hyperlinks to literature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dr. Lex free?

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

### Is Digi free?

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

### Which has better reviews, Dr. Lex or Digi?

Dr. Lex is rated higher. Dr. Lex averages 4.0 out of 5 from 9 ratings, while Digi averages 3.7 from 3 ratings.

### Do Dr. Lex or Digi have ads?

Neither Dr. Lex nor Digi shows ads.

### Which is updated more often, Dr. Lex or Digi?

Dr. Lex ships an update every 3 weeks, and Digi every 2 months. Most recently, Dr. Lex was updated on November 3, 2026 and Digi on November 3, 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.*