# IPSDI Exposure Tracker vs 3M Scott Universal Mobile App

The clearest difference is update cadence: IPSDI Exposure Tracker at every 9 days against 3M Scott Universal Mobile App's every 9 months. 3M Scott Universal Mobile App's advantage is iOS requirement (13.0 vs 16.0). 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.

IPSDI Exposure Tracker ships an update every 9 days, 3M Scott Universal Mobile App every 9 months. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | IPSDI Exposure Tracker | 3M Scott Universal Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (38 ratings)](https://appshunter.io/ios/app/ipsdi-exposure-tracker/id1457260349/reviews)** | — |
| Number of ratings | **38** | — |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 9 months |
| Monetization | Free | — |
| Size | 15 MB | 29 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [International Public Safety Data Institute](https://appshunter.io/developer/1457260348) | [3M Company](https://appshunter.io/developer/396772465) |

## What reviewers say

### IPSDI Exposure Tracker

[App page](https://appshunter.io/ios/app/ipsdi-exposure-tracker/id1457260349)

This app allows firefighters to easily track and record individual exposures encountered during their work. It provides a simplified interface to document incidents that may require future reference. Developed by a public safety data science organization, it aims to enhance personal safety through data documentation.

**Highlights:** Track individual exposures, Record exposure history, Simplified modern interface, Focus on exposure events, Developed by public safety experts

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

**In-app purchases:** none


### 3M Scott Universal Mobile App

[App page](https://appshunter.io/ios/app/3m-scott-universal-mobile-app/id6698846446)

**In-app purchases:** none


## Frequently asked questions

### Is IPSDI Exposure Tracker free?

IPSDI Exposure Tracker is free to download, with no in-app purchases.

### Is 3M Scott Universal Mobile App free?

3M Scott Universal Mobile App is free to download, with no in-app purchases.

### Do IPSDI Exposure Tracker or 3M Scott Universal Mobile App have ads?

Neither IPSDI Exposure Tracker nor 3M Scott Universal Mobile App shows ads.

### Which is updated more often, IPSDI Exposure Tracker or 3M Scott Universal Mobile App?

IPSDI Exposure Tracker ships an update every 9 days, and 3M Scott Universal Mobile App every 9 months. Most recently, IPSDI Exposure Tracker was updated on November 11, 2026 and 3M Scott Universal Mobile App on November 8, 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.*