# Travax vs USAMRIID Biodefense

The clearest difference is update cadence: USAMRIID Biodefense at every 2 days against Travax's every 3 weeks. 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.

Travax ships an update every 3 weeks, USAMRIID Biodefense every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Travax | USAMRIID Biodefense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/travax/id6744760270/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 50 MB | 7 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shoreland, Inc.](https://appshunter.io/developer/1809221463) | [Defense Health Agency](https://appshunter.io/developer/1264687017) |

## What reviewers say

### Travax

[App page](https://appshunter.io/ios/app/travax/id6744760270)

This app provides comprehensive travel medicine information, including destination-specific health risks, vaccine recommendations, and malaria prevention. It offers detailed country maps, cultural considerations, safety advice, and a library of over 100 travel health topics for research.

**Highlights:** Destination-specific medical summaries, Vaccine and malaria prevention recommendations, Traveler's diarrhea risk assessment, Searchable country maps, Cross-cultural and safety considerations, Extensive travel health library, Latest travel health bulletins

**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 Travax free?

Travax 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 Travax or USAMRIID Biodefense have ads?

Neither Travax nor USAMRIID Biodefense shows ads.

### Which is updated more often, Travax or USAMRIID Biodefense?

Travax ships an update every 3 weeks, and USAMRIID Biodefense every 2 days. Most recently, Travax was updated on October 30, 2026 and USAMRIID Biodefense on October 31, 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.*