Comparison

HazMat Reference vs CA Vehicle Code 2026

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

Head to head
About

HazMat Reference

Quickly access critical information on hazardous materials for handling, storage, and incident response. Features include advanced search, sorting, and filtering of materials from key regulatory tables and guides. Offline access ensures availability in any situation.

Highlights
  • ERG 2024 data
  • NIOSH, CFR/HMT, NFPA, GHS information
  • Advanced search, sort, and filter
  • Offline access
  • NFPA Fire Diamond
  • Physical descriptions and CAS#
  • DOT incident data filter
Features
Currently charting
Read full description

Your best quick reference for hazardous materials. Includes: NIOSH, CFR/HMT, NFPA, GHS, CAMEO information. This app serves as a quick reference and educational tool for employees that are involved with the regular handling and storage or incident response of Hazardous Materials. Materials from the Hazardous Material Table (HMT) and Emergency Response Guidebook (ERG) are listed in easy to review form with advanced search, sort, and filter capabilities. Pertinent information from the HMT, ERG, NIOSH and other sources are listed with the proper placard and hazard class for each material. The Hazardous Materials Table (HMT) 49 CFR §172.101 is a list of hazardous materials by proper shipping name that governs the transportation, marking and labeling by all modes: air, water, rail, and highway. Understanding and knowing how to use information in the HMT is the first step toward compliance. The Emergency Response Guidebook (ERG) is primarily a guide to aid first responders in quickly identifying the specific or generic hazards of the material(s) involved in the incident, and protecting themselves and the general public during the initial response phase of the incident. The ERG is updated and released every 4 years by the D.O.T. No internet connection required. Find materials by name or UN Identifier. Includes information from all tables and reference pages in the ERG. Additional Features: * Filter/Sort Materials with DOT Reported Incidents in the last 12 months * History of materials - most recent or most viewed * NFPA Fire Diamond: quick visual ref for Health, Fire, Reactivity, and other hazards * Physical descriptions for most chemicals * CAS#, RTECS# with NIOSH IDLH and exposure information * Quicksort by UN ID#, guide #, name or number of incidents

About

CA Vehicle Code 2026

Access the complete California Vehicle Code offline on your iPhone or iPad. Search for specific sections quickly, read them aloud, and share or print them. This efficient app requires no internet connection and offers both portrait and landscape viewing.

Highlights
  • Full California Vehicle Code text
  • Real-time section number search
  • Fast full-text search
  • Email or print sections
  • Read sections aloud
  • Offline access
Features
Currently charting
Read full description

This application provides the full text of the California Vehicle Code in an easily readable and searchable format for your iPhone, iPad or iPod Touch. Product Features: - The full text of the California Vehicle Code - Real-time section number search - Fast full-text search to quickly find sections of interest - Email or Print* sections of the code - Read aloud sections of the code - Search within search results to narrow down matches - No network connection required - Very efficient - runs fast, and uses little memory - Read the Vehicle Code in Portrait or Landscape mode No network connection is required to use this program. The full Vehicle Code will be stored on your iPhone, iPad or iPod Touch. * Printing sections of the code requires an airprint compatible printer

Screenshots

HazMat Reference4 screens
CA Vehicle Code 20264 screens

Verdict

The call

The clearest difference is price: HazMat Reference at $4.99 against CA Vehicle Code 2026's $19.99. HazMat Reference also leads on review sentiment (96% vs 57%) and rating (4.8 vs 4.3). On update cadence, ads, monetization model and device support 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

HazMat Reference costs $4.99 and CA Vehicle Code 2026 $19.99 up front. CA Vehicle Code 2026 sells 11 one-off in-app purchases. HazMat Reference asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HazMat Reference holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: HazMat Reference has 1.7K ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 96% of HazMat Reference's written reviews are positive against 57% of CA Vehicle Code 2026's.

UpkeepUpdate frequency

HazMat Reference ships an update every 4 months, CA Vehicle Code 2026 every 6 months. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

Scorecard7 real differences · 4 level
HazMat Reference versus CA Vehicle Code 2026: the parameters behind the verdict, then further details
ParameterHazMat ReferenceCA Vehicle Code 2026
Price$4.99 — better$19.99
Rating4.8 (1.7K ratings) — better4.3 (26 ratings)
Positive reviews95.9% of reviews — better57.1% of reviews
Number of ratings1.7K — better26
Update frequencyEvery 4 months — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
Best chart rank#15 — better#198
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size75 MB97 MB
Age rating12+4+
DeveloperThatsMyStapler Inc.PDA Wizard

Customer experience

HazMat Reference

All ratings1,723 ratings
Positive96.4%
Neutral1.7%
Negative1.9%
Written reviews170 reviews
Positive95.9%
Neutral2.4%
Negative1.8%

CA Vehicle Code 2026

All ratings26 ratings
Positive88.5%
Neutral0.0%
Negative11.5%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

Bugs and requests

HazMat Reference

Reported bugs

1 issue
  • Bulk packaging information part of CFR 49 won't load

Requested features

2 requests
  • Format for larger phones
  • Ability to print guide or reference material

CA Vehicle Code 2026

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

HazMat Reference

No in-app purchases

11 purchases

CA Vehicle Code 2026

One-time11
  • CA Vehicle Code 2015 Statutes$4.99
  • CA Vehicle Code 2016 Statutes$4.99
  • CA Vehicle Code 2017 Statutes$4.99
Show 8 more
  • CA Vehicle Code 2018 Statutes$5.99
  • CA Vehicle Code 2019 Statutes$6.99
  • CA Vehicle Code 2020 Statutes$8.99
  • CA Vehicle Code 2022 Statutes$9.99
  • CA Vehicle Code 2023 Statutes$9.99
  • CA Vehicle Code 2024 Statutes$9.99
  • CA Vehicle Code 2026 Statutes$19.99
  • CA Vehicle Code 2025 Statutes$19.99

Questions

Is HazMat Reference free?
HazMat Reference costs $4.99, with no in-app purchases.
Is CA Vehicle Code 2026 free?
CA Vehicle Code 2026 costs $19.99, and also offers in-app purchases.
Which has better reviews, HazMat Reference or CA Vehicle Code 2026?
HazMat Reference is rated higher. HazMat Reference averages 4.8 out of 5 from 1.7K ratings, while CA Vehicle Code 2026 averages 4.3 from 26 ratings.
Do HazMat Reference or CA Vehicle Code 2026 have ads?
Neither HazMat Reference nor CA Vehicle Code 2026 shows ads.
Which is updated more often, HazMat Reference or CA Vehicle Code 2026?
HazMat Reference ships an update every 4 months, and CA Vehicle Code 2026 every 6 months. Most recently, HazMat Reference was updated on October 13, 2026 and CA Vehicle Code 2026 on October 9, 2026.
Which is more popular, HazMat Reference or CA Vehicle Code 2026?
HazMat Reference currently peaks at #15 in the App Store charts, and CA Vehicle Code 2026 at #198. Chart position reflects recent download velocity rather than total install base.

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