# Decon Field Guide vs REAC/TS

The clearest difference is rating: REAC/TS at 5.0 against Decon Field Guide's 4.6. REAC/TS also leads on monetization model (free vs ad-supported). On price, ratings volume, update cadence and ads there is nothing between them.

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

REAC/TS holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

Decon Field Guide ships an update every 2 months, REAC/TS every 3 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Decon Field Guide | REAC/TS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8 ratings)](https://appshunter.io/ios/app/decon-field-guide/id1388378944/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/reacts/id1472260982/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 74 MB | 62 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [First Line Technology](https://appshunter.io/developer/1388378943) | [ORAU](https://appshunter.io/developer/630626943) |

## What reviewers say

### Decon Field Guide

[App page](https://appshunter.io/ios/app/decon-field-guide/id1388378944)

This reference app provides quick and efficient decontamination methods for hundreds of threats. It features a classic Threat Index, pictorial instructions, and an in-app dwell timer to guide users through mission execution. Designed for approved users, it aims to make anyone an instant decontamination expert.

**Highlights:** Threat Index for decontamination methods, Pictorial instructions, In-app dwell timer, Covers hundreds of threats, Designed for approved users

**Features:** macOS Compatibility

**In-app purchases:** none


### REAC/TS

[App page](https://appshunter.io/ios/app/reacts/id1472260982)

This app provides essential information for the medical management of individuals exposed to radiation or radioactive materials. It serves as a valuable resource for healthcare professionals and emergency responders dealing with radiation-related emergencies.

**Highlights:** Medical management of radiation exposure, Emergency response resources, Information for healthcare professionals, Guidance for public health agencies, 24/7 contact information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decon Field Guide free?

Decon Field Guide is free to download, with no in-app purchases.

### Is REAC/TS free?

REAC/TS is free to download, with no in-app purchases.

### Which has better reviews, Decon Field Guide or REAC/TS?

REAC/TS is rated higher. Decon Field Guide averages 4.6 out of 5 from 8 ratings, while REAC/TS averages 5.0 from 5 ratings.

### Do Decon Field Guide or REAC/TS have ads?

Neither Decon Field Guide nor REAC/TS shows ads.

### Which is updated more often, Decon Field Guide or REAC/TS?

Decon Field Guide ships an update every 2 months, and REAC/TS every 3 months. Most recently, Decon Field Guide was updated on October 25, 2026 and REAC/TS 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.*