# TRACE vs SNMMI

The clearest difference is review sentiment: TRACE at 100% against SNMMI's 0%. TRACE also leads on rating (5.0 vs 4.0) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

TRACE holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 100% of TRACE's written reviews are positive against 0% of SNMMI's.

TRACE ships an update every 2 months, SNMMI every 3 months. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | TRACE | SNMMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/trace-iaea/id1239473992/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/snmmi/id1604374827/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Ad-supported |
| Size | 47 MB | 55 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [IAEA](https://appshunter.io/developer/535500126) | [Society of Nuclear Medicine and Molecular Imaging](https://appshunter.io/developer/1440326991) |

## What reviewers say

### TRACE

[App page](https://appshunter.io/ios/app/trace-iaea/id1239473992)

This app aids in assessing radiation detection alarms to prevent illicit trafficking of nuclear materials. It provides guidance on naturally occurring radioactive material and harmonized system codes for international trade.

**Highlights:** Radiation alarm assessment, Illicit trafficking prevention, NORM and HS Code guidance, International trade support, Nuclear material security

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

**In-app purchases:** none


### SNMMI

[App page](https://appshunter.io/ios/app/snmmi/id1604374827)

This app provides access to SNMMI news and resources. Users can build meeting schedules, connect with other members and attendees through direct messaging, and receive important alerts and notifications.

**Highlights:** Access SNMMI meeting content, Dedicated news feed, SNMMI alerts and push notifications, Member-to-member chat, Group messaging, Access to resources

**In-app purchases:** none


## Frequently asked questions

### Is TRACE free?

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

### Is SNMMI free?

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

### Which has better reviews, TRACE or SNMMI?

TRACE is rated higher. TRACE averages 5.0 out of 5 from 4 ratings, while SNMMI averages 4.0 from 4 ratings.

### Do TRACE or SNMMI have ads?

SNMMI shows ads; TRACE does not.

### Which is updated more often, TRACE or SNMMI?

TRACE ships an update every 2 months, and SNMMI every 3 months. Most recently, TRACE was updated on October 11, 2026 and SNMMI on September 28, 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.*