Comparison

FAST vs HazSight

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FAST

This app serves as a guide for HAZMAT professionals on how a specific decontamination agent interacts with and neutralizes various chemicals. It features a comprehensive chemical threat index, detailing efficacy on vapor releases and contaminated surfaces, with search and sort functionalities.

Highlights
  • Extensive chemical threat index
  • FAST-ACT efficacy details
  • Vapor release decontamination
  • Contaminated surface decontamination
  • Search by Chemical Name
  • Sort by CAS Number
Features
Read full description

The FAST-ACT Chemical Decontamination Guide was designed to provide HAZMAT professional a guide on how FAST-ACT will interact and decontaminate the chemical that they are encountering. The FAST-ACT Chemical Decontamination Guide provides: • The largest chemical threat index on an app • FAST-ACT efficacy on specific vapor release and contaminated surfaces • Sort and search by Chemical Name, Cas NO.

About

HazSight

Read full description

HazSight is a free (for responders and the public), fully offline reference for hazardous-materials incidents. Search by UN/NA number or chemical name and get plain-language, action-oriented guidance from the 2024 U.S. Emergency Response Guidebook (ERG) — without a signal, without an account, without your data ever leaving the device. Two audiences meet the same placard at the roadside, and HazSight gives each of them the view they need. FOR FIRST RESPONDERS (FIRE, EMS, HAZMAT) - Full professional ERG guide pages: hazards, public safety, emergency response, and protective-clothing sections from the 2024 ERG. - Initial isolation and protective-action distances scaled by spill size (small vs large), time of day (day vs night), and wind direction. - Live mini-map centered on your current location (with your permission), with a fullscreen view for incident-command-style planning. - Reference jumps: tap a guide cross-reference (e.g. BLEVE, polymerization) to land directly on the relevant ERG appendix. - Quick-call affordance to local emergency services from the result screen. - Distances in imperial or metric. FOR CIVILIANS & BYSTANDERS - Plain-language summary of what the placard means and what to do first. - "What to do now" guidance tuned for someone without protective equipment: how far to move, which direction, when to call 911. - Calm or emergency banner makes the severity legible at a glance, and lets you escalate with a single tap. - The same evacuation distances and live mini-map as the responder view, presented with civilian framing. - Optional read-aloud (text-to-speech) so you can keep your eyes on the scene and your hands free. WHY OFFLINE The places hazmat decisions happen are the same places cellular and Wi-Fi fail: roadside, rural roads, tunnels, basement parking, refinery edges, post-disaster zones. HazSight ships the entire 2024 ERG inside the app. Every lookup runs locally, every guidance page renders locally, and nothing is transmitted over the network. The optional location permission is used only to center the mini-map on your position; your location is never sent anywhere. PRIVACY No account. No analytics. No ad networks. No data collection. The orange-diamond camera permission listed by iOS is reserved for an upcoming feature (see "What's next" below) and is not used in this release. IMPORTANT HazSight aids a decision. It never replaces calling 911 or your local emergency services. Treat its guidance as a starting point, not a substitute for trained on-scene judgment. If lives, property, or the environment are at risk, call emergency services first. WHAT'S NEXT On-device camera identification of placards is in active development. It is not enabled in this release — current per-photo inference latency on shipping hardware is too slow to be useful at the roadside. We are keeping it off until it earns its place. Future updates will turn it on once it meets that bar; the text search will remain the default path. LICENSE & COST Free for Responders. Free for Bystanders. No ads. No in-app purchases.

Screenshots

FAST3 screens
HazSight4 screens

Verdict

The call

The clearest difference is device support: FAST at 3 against HazSight's —. FAST also leads on iOS requirement (12.1 vs 16.0). On price and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard2 real differences · 8 level
FAST versus HazSight: the parameters behind the verdict, then further details
ParameterFASTHazSight
PriceFreeFree
Rating4.3 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 7 months—
AdsNo—
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — better—
Requires iOS12.1 — better16.0
Further details — not scored
Size22 MB101 MB
Age rating4+17+
DeveloperTimilon Technology Acquisitions LLCDromos, Inc.

In-app purchases

None

FAST

No in-app purchases

None

HazSight

No in-app purchases

Questions

Is FAST free?
FAST is free to download, with no in-app purchases.
Is HazSight free?
HazSight is free to download, with no in-app purchases.

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