Decon Field Guide vs FireHazmat
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.
FireHazmat
This offline reference app provides comprehensive data on hazardous materials for emergency responders. It includes detailed chemical information, response guides, and an incident command board for managing incidents.
- 3,541 hazardous materials searchable database
- 62 ERG response guides
- Protective action distances (Tables 1 & 3)
- Live evacuation map with wind-aware plume
- Visual placard identification grid
- Unknown-substance field triage wizard
- NIMS/ICS incident command board
Read full descriptionHide full description
FireHazmat is the complete 2024 Emergency Response Guidebook for fire department command. 3,541 chemicals, 62 guides, Tables 1 and 3, evacuation map, and NIMS/ICS Incident Command Board — all on-device. No signal, no ads, no tracking. WHO IT'S FOR • Fire department command and chief officers • Hazmat teams and technicians • Industrial fire brigades, emergency management, and rail / pipeline incident commanders WHAT'S INSIDE • 3,541 hazardous materials searchable by name, UN/NA number, CAS number, synonym, or ERG guide number • 62 ERG response guides • ERG 2024 Table 1 protective action distances (272 materials) and Table 3 large-spill PADs • Live evacuation map — Isolation and Protective Action Zones from GPS, wind-aware downwind plume, live weather, Day / Night PAD toggle auto-set by sunrise / sunset • Visual placard identification grid for all 9 DOT hazard classes • Unknown-substance wizard — 11-step field triage returning PPE level, hazard class candidates, and field instruments • Per-chemical chemistry from NIOSH and PubChem — IDLH, flash point, boiling point, autoignition, vapor density, flammable range — alongside verbatim OSHA HCS and UN GHS hazard text, with critical hazards flagged red • CHEMTREC and National Response Center one-tap dial INCIDENT COMMAND BOARD (iPad and desktop) A digital NIMS/ICS hazmat tactical worksheet modeled on FIRESCOPE. • Active-incident timer with status transitions • Strategic Mode picker with breach detection if non-intervention is declared while a hot-zone crew is committed • Objective Priorities tracking in standard NIMS order • Full Command Staff roster • Department roster — preload personnel on this device via bulk paste or CSV / Excel import with column-mapping. IC taps a name onto a zone instead of typing during an incident • Five PPE selections — Levels A–D (EPA hazmat) plus Rescue Mode (turnout + SCBA for life rescue) with a "RESCUE IN PROGRESS" overlay • Hot Zone — entry + two backup teams, per-member SCBA tracking (60/45/30/20-min) with turnaround and over-time math • Warm Zone — decon level, corridor status, decon team, separate decon air limit • Cold Zone — staging area and mutual-aid agency tracking • Rehab tracking — send, clear, return to duty • PAR cycle with configurable interval, due / overdue alarms, one-tap acknowledge • One-tap HazMat benchmarks — Recon Complete, Product Identified, Isolation Established, Entry Made, Leak Controlled, Decon Operational, All Clear — timestamped to the log • Scene material linkage — drop a chemical onto the incident; TIH banner and isolation distances pull in automatically • Timestamped Activity Log with notes for after-action review • Archived incident history with PDF / JSON / CSV export — every reset incident is preserved on this device for exposure records and after-action review. Persists across app data updates. DATA SOURCES All data sourced from U.S. government and public-domain references: • ERG 2024 (PHMSA / DOT) — materials, response guides, isolation distances, Tables 1 and 3 • NIOSH Pocket Guide (CDC / NIOSH) — IDLH exposure values • 49 CFR (DOT) — hazard class and division definitions • PubChem (NIH / NLM) — physical properties and CAS numbers • OSHA HCS 29 CFR 1910.1200 App. C and UN GHS Rev. 9 Annex 3 — verbatim GHS hazard text NOT A REPLACEMENT FOR TRAINING FireHazmat is a reference tool. It does not replace formal hazmat training or consultation with on-scene IC, CHEMTREC, or your AHJ. Always verify recommendations against current ERG documentation and on-scene monitoring. PRIVACY No account, no ads, no analytics. On the Map, coordinates fetch live weather (Open-Meteo) and an address label (OpenStreetMap) — no identity attached. Policy: https://firehazmat.openscaffoldlabs.com/privacy. DEPARTMENT LICENSING Multi-iPad deployments with cross-device incident sync, cross-device roster sync, and encrypted cloud backup are available via department licensing — see firehazmat.openscaffoldlabs.com.
Screenshots
Verdict
The clearest difference is in-app purchases: Decon Field Guide at none against FireHazmat's 2. Decon Field Guide also leads on ratings volume (8 vs 1). FireHazmat's advantage is ads (none vs shown) and rating (5.0 vs 4.6). On price, update cadence, device support and iOS requirement 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. FireHazmat sells 2 in-app purchases, starting at $19.99 per year. Decon Field Guide asks for nothing beyond the download.
FireHazmat holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Decon Field Guide has 8 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.
| Parameter | Decon Field Guide | FireHazmat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 73 MB | 43 MB |
| Age rating | 17+ | 4+ |
| Developer | First Line Technology, LLC | Open Scaffold Labs LLC |
Customer experience
Decon Field Guide
FireHazmat
In-app purchases
Decon Field Guide
No in-app purchases
FireHazmat
- FireHazmat Map (iPhone)7 Days trial$19.991 Year
- FireHazmat Pro (iPad)7 Days trial$299.001 Year





