# MobilEM vs Sibyl Sim

The clearest difference is in-app purchases: Sibyl Sim at none against MobilEM's 12. MobilEM's advantage is chart position (#56 vs unranked) and iOS requirement (15.0 vs 27.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MobilEM sells 12 in-app purchases, starting at $1.99 per year. Sibyl Sim asks for nothing beyond the download.

MobilEM ships an update every 2 months, Sibyl Sim monthly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | MobilEM | Sibyl Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (39 ratings)](https://appshunter.io/ios/app/mobilem/id1474834329/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#56** | — |
| Size | 205 MB | 16 MB |
| Requires iOS | **15.0** | 27.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Age rating | 17+ | 4+ |
| Developer | [Emergency Medicine Residents' Association](https://appshunter.io/developer/331670150) | [Brandon Dominguez](https://appshunter.io/developer/814294685) |

## What reviewers say

### MobilEM

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

**Currently charting:** #56 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 |


### Sibyl Sim

[App page](https://appshunter.io/ios/app/sibyl-sim/id6792397220)

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

**In-app purchases:** none


## Frequently asked questions

### Is MobilEM free?

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

### Is Sibyl Sim free?

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

### Do MobilEM or Sibyl Sim have ads?

Neither MobilEM nor Sibyl Sim shows ads.

### Which is updated more often, MobilEM or Sibyl Sim?

MobilEM ships an update every 2 months, and Sibyl Sim monthly. Most recently, MobilEM was updated on October 15, 2026 and Sibyl Sim on October 14, 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.*