Decon Field Guide vs TheHazMatApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decon Field Guide
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.
- Threat Index for decontamination methods
- Pictorial instructions
- In-app dwell timer
- Covers hundreds of threats
- Designed for approved users
Read full descriptionHide full description
Imagine decontamination in the palm of your hand. Introducing the all-new, redesigned Decon Field Guide. Using the same classic Threat Index, quickly and efficiently determine proper decontamination methods for hundreds of known and emerging threats and execute your mission flawlessly utilizing pictorial instructions and in-app dwell timer. Become an instant decontamination expert with the Decon Field Guide. Only available for approved users. Download now.
TheHazMatApp
Access a comprehensive database of hazardous materials and their assigned building and fire code hazard classifications. Quickly look up chemicals by name or CAS number to determine their specific hazard status.
- Hazardous materials database
- Building and fire code classifications
- Lookup by Chemical Name
- Lookup by CAS Number
- Expert-assigned classifications
Read full descriptionHide full description
TheHazMatApp provides engineers, consultants, building owners, and inspectors a database of hazardous materials that have been assigned building and fire code hazard classifications by experts and industry professionals. Lookup various chemicals by Chemical Name or CAS Number to determine their hazard classification.
Screenshots
Verdict
The clearest difference is rating: Decon Field Guide at 4.6 against TheHazMatApp's 3.7. TheHazMatApp's advantage is iOS requirement (12.0 vs 15.1). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Decon Field Guide holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 8 and 3 respectively.
Decon Field Guide ships an update every 2 months, TheHazMatApp every 6 weeks. The most recent releases landed on June 4, 2026 and June 28, 2026 respectively.
| Parameter | Decon Field Guide | TheHazMatApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (8 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 73 MB | 22 MB |
| Age rating | 17+ | 4+ |
| Developer | First Line Technology, LLC | HazClass, INC. |
Customer experience
Decon Field Guide
TheHazMatApp
In-app purchases
Decon Field Guide
No in-app purchases
TheHazMatApp
No in-app purchases
