# Mobile REMM vs USAMRIID Biodefense

The clearest difference is update cadence: USAMRIID Biodefense at every 2 days against Mobile REMM's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mobile REMM ships an update every 4 months, USAMRIID Biodefense every 2 days. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Mobile REMM | USAMRIID Biodefense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/mobile-remm/id372600451/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 8 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Assistant Secretary for Preparedness and Response](https://appshunter.io/developer/1573415809) | [Defense Health Agency](https://appshunter.io/developer/1264687017) |

## What reviewers say

### Mobile REMM

[App page](https://appshunter.io/ios/app/mobile-remm/id372600451)

Provides guidance for healthcare providers on the clinical diagnosis and treatment of radiation injury. Offers downloadable information, patient management algorithms, dose estimators, and triage tools for radiological and nuclear emergencies.

**Highlights:** Clinical diagnosis and treatment guidance, Radiation injury management algorithms, Dose estimator for radiation exposure, Adult and pediatric triage tools, Information on isotopes of interest, Radiation countermeasures, Emergency contact information

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

**In-app purchases:** none


### USAMRIID Biodefense

[App page](https://appshunter.io/ios/app/usamriid-biodefense/id6765510316)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mobile REMM free?

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

### Is USAMRIID Biodefense free?

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

### Do Mobile REMM or USAMRIID Biodefense have ads?

Neither Mobile REMM nor USAMRIID Biodefense shows ads.

### Which is updated more often, Mobile REMM or USAMRIID Biodefense?

Mobile REMM ships an update every 4 months, and USAMRIID Biodefense every 2 days. Most recently, Mobile REMM was updated on October 23, 2026 and USAMRIID Biodefense on October 21, 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.*