# MobilEM vs Xray Vault

The clearest difference is price: MobilEM at Free against Xray Vault's $4.99. MobilEM also leads on ratings volume (39 vs 1) and chart position (#80 vs unranked). Xray Vault's advantage is rating (5.0 vs 3.6) and in-app purchases (none vs 12). On ads, device support and iOS requirement there is nothing between them.

MobilEM is free to download; Xray Vault costs $4.99 up front. MobilEM sells 12 in-app purchases, starting at $1.99 per year. Xray Vault asks for nothing beyond the download.

Xray Vault holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: MobilEM has 39 ratings behind it against 1, so its average is the more settled of the two.

MobilEM ships an update every 2 months, Xray Vault every 5 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MobilEM | Xray Vault |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [3.6 (39 ratings)](https://appshunter.io/ios/app/mobilem/id1474834329/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/xray-vault-rad-tech-guide/id6784745491/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#80** | — |
| Size | 205 MB | 133 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Emergency Medicine Residents' Association](https://appshunter.io/developer/331670150) | [GINO VALENTIE FERNANDEZ](https://appshunter.io/developer/6784745493) |

## What reviewers say

### MobilEM

[App page](https://appshunter.io/ios/app/mobilem/id1474834329)

**Currently charting:** #80 Top Grossing · Medical (US App Store)

Provides fast, evidence-based clinical guidance for emergency medicine professionals. Access updated recommendations on a wide range of topics, including antibiotics, toxicology, and critical care. Offers free content, individual purchases, and an all-access subscription.

**Highlights:** Evidence-based recommendations, Antibiotic and toxicology guidance, EKG and orthopedic injury protocols, Airway and pediatric emergency management, Critical care medication information, Fast navigation and universal search, Bookmarking and note-taking

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ventilator Mgmt. Subscription | $1.99 | per year |
| Pediatric Qwic | $1.99 | per year |
| MobilEm Airway Management | $4.99 | per year |
| Trauma Guide | $4.99 | per year |
| Antibiotic Guide Subscription | $9.99 | per year |
| MobilEm Ortho Guide | $9.99 | per year |
| MobilEM Tox Guide | $9.99 | per year |
| PressorDex | $9.99 | per year |
| EKG Guide Subscription | $9.99 | per year |
| Pain Management | $9.99 | per year |
| PEM Fundamentals Subscription | $9.99 | per year |
| MobilEm All Access Pass | $39.99 | per year |


### Xray Vault

[App page](https://appshunter.io/ios/app/xray-vault-rad-tech-guide/id6784745491)

A fully customizable, offline reference guide for radiologic technologists and students. It helps you store workplace protocols, track license renewals, and manage exam checklists. This digital pocket notebook enhances efficiency for professionals and learners.

**Highlights:** Customizable offline reference guide, kVp & mAs trackers, Department & OR exam checklists, Hospital phone directory, License expiration tracker, Personalized notes for exams

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MobilEM free?

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

### Is Xray Vault free?

Xray Vault costs $4.99, with no in-app purchases.

### Which has better reviews, MobilEM or Xray Vault?

Xray Vault is rated higher. MobilEM averages 3.6 out of 5 from 39 ratings, while Xray Vault averages 5.0 from 1 ratings.

### Do MobilEM or Xray Vault have ads?

Neither MobilEM nor Xray Vault shows ads.

### Which is updated more often, MobilEM or Xray Vault?

MobilEM ships an update every 2 months, and Xray Vault every 5 days. Most recently, MobilEM was updated on October 16, 2026 and Xray Vault on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*