Comparison

Kahua vs Chapter 33 Assistant

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

Head to head
About

Kahua

Manage construction projects and files on the go. This app allows users to handle documents, track job costs, and send/receive tasks directly from their mobile device, ensuring connectivity and flexibility for fieldwork.

Highlights
  • File management on the go
  • Task assignment and tracking
  • Industry-leading document management
  • Job cost tracking and management
  • Mobile construction workflow
Features
Read full description

With kahua mobile for iOS, work the way you want to work. Stay connected when you're on the go with kahua. Key Features: - File Manager: Manage your files when and where you want - Tasks: Send and receive tasks directly from your device - Document Management: Our industry-leading document management suite - Cost Management: Manage and track job cost documents on a construction project.

About

Chapter 33 Assistant

An AI-powered reference tool for NYC construction professionals. Get instant, code-cited answers to safety questions, generate site-specific checklists, and create toolbox talks. Analyze jobsite hazards with AI photo analysis.

Highlights
  • Instant code-cited answers
  • Site-specific safety checklist generator
  • Toolbox talk generator
  • AI photo hazard analysis
  • Multilingual support
  • GPT-4o powered
Features
Read full description

Chapter 33 Assistant is an AI-powered reference tool for NYC construction professionals — site safety managers, superintendents, and foremen who need instant, code-cited answers on the job. INSTANT ANSWERS Ask any question about NYC Building Code Chapter 33, OSHA 29 CFR 1926, or FDNY Fire Code and get a precise answer with the exact code citation in seconds. CHECKLIST GENERATOR Generate site-specific safety checklists as print-ready PDFs. Templates include scaffold erection, fall protection, hot work permits, demolition, excavation, crane inspection, and more. TOOLBOX TALK GENERATOR Produce ready-to-print toolbox talk PDFs on demand. Covers fall protection, heat illness, scaffold safety, hot work, lockout/tagout, and 90+ other topics — with regulatory citations and a field photo. PHOTO ANALYSIS Photograph a jobsite hazard and let the AI identify applicable code sections and corrective actions. Powered by GPT-4o. MULTILINGUAL English, Spanish, Portuguese, Polish, Chinese, French, and Haitian Creole. WHO IT'S FOR • Site Safety Managers (SSM) managing Chapter 33 compliance • Licensed Construction Superintendents • Safety officers and foremen • Anyone studying for the NYC SSM or Superintendent exam PLANS Free — 30 questions/month, 10 checklists/month Pro ($4.99/mo) — 150 questions, 20 checklists, 10 photo uploads Plus ($11.99/mo) — 300 questions, 25 checklists, 25 uploads Team ($14.99/mo) — 5 seats with shared library Subscriptions are managed at chapter33.plumbaiproject.com and apply across all devices. This app provides AI-generated reference information. Always verify with the applicable code, your licensed engineer, or the NYC Department of Buildings before making compliance decisions. LEGAL Privacy Policy: https://chapter33.plumbaiproject.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Kahua4 screens
Chapter 33 Assistant4 screens

Verdict

The call

The clearest difference is rating: Chapter 33 Assistant at 5.0 against Kahua's 3.8. Kahua's advantage is in-app purchases (none vs 3) and ratings volume (10 vs 2). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chapter 33 Assistant sells 3 in-app purchases, starting at $4.99 per month. Kahua asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chapter 33 Assistant holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Kahua has 10 ratings behind it against 2, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Kahua versus Chapter 33 Assistant: the parameters behind the verdict, then further details
ParameterKahuaChapter 33 Assistant
PriceFreeFree
Rating3.8 (10 ratings)5.0 (2 ratings) — better
Positive reviews25.7% of reviews—
Number of ratings10 — better2
Update frequencyWeekly—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size397 MB21 MB
Age rating4+4+
DeveloperkahuaDONOVAN MCQUILLEN

Customer experience

Kahua

All ratings10 ratings
Positive70.0%
Neutral0.0%
Negative30.0%
Written reviews35 reviews
Positive25.7%
Neutral2.9%
Negative71.4%

Chapter 33 Assistant

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kahua

No in-app purchases

3 purchases

Chapter 33 Assistant

Subscriptions3
  • Pro$4.991 Month
  • Plus$11.991 Month
  • Team$14.991 Month

Questions

Is Kahua free?
Kahua is free to download, with no in-app purchases.
Is Chapter 33 Assistant free?
Chapter 33 Assistant is free to download, with in-app purchases available.
Which has better reviews, Kahua or Chapter 33 Assistant?
Chapter 33 Assistant is rated higher. Kahua averages 3.8 out of 5 from 10 ratings, while Chapter 33 Assistant averages 5.0 from 2 ratings.
Do Kahua or Chapter 33 Assistant have ads?
Neither Kahua nor Chapter 33 Assistant shows ads.

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