# DRR Rescue vs Decon Field Guide

The clearest difference is review sentiment: DRR Rescue at 93% against Decon Field Guide's 0%. DRR Rescue also leads on ratings volume (518 vs 8) and rating (4.9 vs 4.6). Decon Field Guide's advantage is price (Free vs $19.99) and update cadence (every 2 months vs every 12 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Decon Field Guide is free to download; DRR Rescue costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DRR Rescue holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: DRR Rescue has 518 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 93% of DRR Rescue's written reviews are positive against 0% of Decon Field Guide's.

DRR Rescue ships an update every 12 months, Decon Field Guide every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | DRR Rescue | Decon Field Guide |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.9 (518 ratings)](https://appshunter.io/ios/app/drr-rescue/id570611259/reviews)** | [4.6 (8 ratings)](https://appshunter.io/ios/app/decon-field-guide/id1388378944/reviews) |
| Number of ratings | **518** | 8 |
| Positive reviews | **93.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#7** | — |
| Size | 171 MB | 74 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tom PENDLEY](https://appshunter.io/developer/570611262) | [First Line Technology](https://appshunter.io/developer/1388378943) |

## What reviewers say

### DRR Rescue

[App page](https://appshunter.io/ios/app/drr-rescue/id570611259)

**Currently charting:** #7 Top Paid · Reference (US App Store)

This app provides a digital, multimedia field operations guide for urban technical rescue. It offers illustrated procedures, video tutorials, and specialized calculators for shoring and trenching. Interactive checklists and standard-level indicators enhance training and operational efficiency for rescuers.

**Highlights:** Illustrated rescue procedures, Video tutorials, Shoring calculators, Trench calculators, Interactive command checklists, Standard level indicators

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

**In-app purchases:** none

**What reviewers like**

- 👍 Extremely easy to use and navigate
- 📚 Comprehensive technical rescue content covering multiple disciplines
- 🔄 Regularly updated with current material and standards
- 📱 Convenient pocket reference on mobile device
- 🎯 Practical field-tested information from industry experts

**What reviewers complain about**

- 💧 Moisture exposure risk compared to laminated physical guides
- 🔌 Requires device to be charged for use
- 📹 Video content limited or incomplete
- ⚠️ Platform-specific issues (iPad video download problems)
- 🔗 Redirects to external video content unexpectedly

**Reported bugs**

- App crashes on startup or during use
- Text unreadable or display glitches
- Calculator functionality not working
- Video downloads cause app to close (iPad)
- Unexpected redirects to external video content

**Requested features**

- User notes section for personal annotations
- Metric measurements (metres) in addition to imperial
- More comprehensive video tutorial library
- Improved video streaming and download functionality


### 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


## Frequently asked questions

### Is DRR Rescue free?

DRR Rescue costs $19.99, with no in-app purchases.

### Is Decon Field Guide free?

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

### Which has better reviews, DRR Rescue or Decon Field Guide?

DRR Rescue is rated higher. DRR Rescue averages 4.9 out of 5 from 518 ratings, while Decon Field Guide averages 4.6 from 8 ratings.

### Do DRR Rescue or Decon Field Guide have ads?

Neither DRR Rescue nor Decon Field Guide shows ads.

### Which is updated more often, DRR Rescue or Decon Field Guide?

DRR Rescue ships an update every 12 months, and Decon Field Guide every 2 months. Most recently, DRR Rescue was updated on November 1, 2026 and Decon Field Guide on November 2, 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.*