# AsMA vs NASA SAFE

The clearest difference is rating: NASA SAFE at 4.5 against AsMA's 4.3. NASA SAFE also leads on monetization model (free vs ad-supported) and update cadence (every 4 months vs every 9 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.

NASA SAFE holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 4 and 12 respectively.

AsMA ships an update every 9 months, NASA SAFE every 4 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AsMA | NASA SAFE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/asma-uhms-events/id1220034091/reviews) | **[4.5 (12 ratings)](https://appshunter.io/ios/app/nasa-safe/id1635210233/reviews)** |
| Number of ratings | 4 | **12** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Ad-supported | **Free** |
| Size | 48 MB | 23 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aerospace Medical Association](https://appshunter.io/developer/858564509) | [NASA](https://appshunter.io/developer/355542146) |

## What reviewers say

### AsMA

[App page](https://appshunter.io/ios/app/asma-uhms-events/id1220034091)

This app serves as a digital guide for scientific meetings hosted by the Aerospace Medical Association and the Undersea and Hyperbaric Medical Society. It details daily schedules, session information, author names, and abstracts for presentations.

**Highlights:** Digital meeting guide, Day-by-day event listing, Scientific session details, Presentation titles and authors, Complete scientific abstracts

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

**In-app purchases:** none


### NASA SAFE

[App page](https://appshunter.io/ios/app/nasa-safe/id1635210233)

This official safety application provides critical safety alerts and instant access to NASA's safety resources. It includes features for emergency contacts, real-time location sharing with security, and a 'Friend Walk' option to ensure safe travel.

**Highlights:** Emergency contact directory, Real-time location sharing with security, Friend Walk location tracking, Access to safety resources, Safety alerts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AsMA free?

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

### Is NASA SAFE free?

NASA SAFE is free to download, with no in-app purchases.

### Which has better reviews, AsMA or NASA SAFE?

NASA SAFE is rated higher. AsMA averages 4.3 out of 5 from 4 ratings, while NASA SAFE averages 4.5 from 12 ratings.

### Do AsMA or NASA SAFE have ads?

Neither AsMA nor NASA SAFE shows ads.

### Which is updated more often, AsMA or NASA SAFE?

AsMA ships an update every 9 months, and NASA SAFE every 4 months. Most recently, AsMA was updated on October 29, 2026 and NASA SAFE on October 24, 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.*