# Emergency situation vs Diagnosaurus® DDx

The clearest difference is review sentiment: Emergency situation at 88% against Diagnosaurus® DDx's 53%. Emergency situation also leads on update cadence (every 2 months vs every 10 months). Diagnosaurus® DDx's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Emergency situation sells 6 in-app purchases, starting at $2.99 per month and Diagnosaurus® DDx sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Emergency situation ships an update every 2 months, Diagnosaurus® DDx every 10 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Emergency situation | Diagnosaurus® DDx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (2.5K ratings)](https://appshunter.io/ios/app/diagnosaurus-ddx/id833728910/reviews)** |
| Number of ratings | — | **2.5K** |
| Positive reviews | **88.3% of reviews** | 53.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 34 MB | 19 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 17+ |
| Developer | [iVenus](https://appshunter.io/developer/310089820) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Emergency situation

[App page](https://appshunter.io/ios/app/emergency-situation/id348701693)

This app provides essential information and tools for emergency situations. It offers geolocated emergency services, a first aid guide, and a personal medical record. Designed for quick and precise assistance, it aims to be a reliable safety companion.

**Highlights:** Geolocation of emergency services, Interactive map for Europe, GPS location for emergency calls, Pre-registered useful numbers, Personal medical record, Illustrated first aid guide, Accessibility for deaf/hard of hearing

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Emergency+ monthly | $2.99 | per month |
| Emergency+ Annual | $17.99 | per year |
| 1 café | $0.99 | one-time |
| 1 casse croute | $6.99 | one-time |
| Emergency+ | $17.99 | one-time |
| 1 don généreux | $24.99 | one-time |


### Diagnosaurus® DDx

[App page](https://appshunter.io/ios/app/diagnosaurus-ddx/id833728910)

This medical reference tool assists healthcare professionals in performing differential diagnoses quickly and confidently. It offers a searchable database of over 1,000 diagnoses, cross-referenced for related conditions, and allows users to save favorite entries and make custom notes.

**Highlights:** Over 1,000 differential diagnoses, Search by organ system, symptom, or disease, See Related DDx feature, Save favorite entries, Highlight and make custom notes, Universal Index Search

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diagnosaurus DDx | $4.99 | one-time |

**What reviewers like**

- 👍 User-friendly interface
- 🚀 Quick access to differential diagnoses
- 💡 Helpful for building differential diagnoses
- 👍 Comprehensive coverage of conditions
- 👍 Useful for medical students and practitioners

**What reviewers complain about**

- 🐛 Lack of in-depth information
- 🐛 Incomplete differential diagnoses
- 🐛 Lack of links to explain conditions
- 🐛 Requires in-app purchase to access full content
- 🐛 Unreliable update mechanism

**Reported bugs**

- Subscription issues and inability to restore purchases
- Blank pages and non-functional content
- Compatibility issues with newer iOS versions

**Requested features**

- Add ability to edit or add custom differential diagnoses
- Improve search functionality and navigation
- Provide more detailed information on conditions
- Integrate with other medical resources and databases
- Improve support for older devices and iOS versions


## Frequently asked questions

### Is Emergency situation free?

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

### Is Diagnosaurus® DDx free?

Diagnosaurus® DDx is free to download, with in-app purchases available.

### Do Emergency situation or Diagnosaurus® DDx have ads?

Neither Emergency situation nor Diagnosaurus® DDx shows ads.

### Which is updated more often, Emergency situation or Diagnosaurus® DDx?

Emergency situation ships an update every 2 months, and Diagnosaurus® DDx every 10 months. Most recently, Emergency situation was updated on October 29, 2026 and Diagnosaurus® DDx on October 29, 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.*