Contractor License Exam Prep

DMP Software LLC

In-app purchases

About this app

Prepare for the NASCLA Accredited Examination for Commercial General Building Contractors and the business and law topics many state licensing exams cover. This contractor license exam prep app is built like a job trailer: a job board, plan-set drills, and a free tool belt.

OPEN BOOK MEANS FIND IT FAST
The NASCLA exam is open book, so knowing where an answer lives is a real skill. Every question tells you where to look after you answer. The Find-It Playbook covers tabbing, two-pass timing and how to sort a question to the right book.

PLAN-SET TAKEOFF AND BOOK FINDER DRILLS
Pull quantities off a drawn plan: slab and footing yards, block and brick counts, studs and board feet, roof squares, gypsum sheets, excavation and rebar. Then pick which reference answers a question: OSHA, the IBC, ACI 318, ICC A117.1, BCSI and more. Each drill shows the math line by line. The first drill in every group is free.

FREE TOOL BELT
Free for everyone, no account:
• Markup and margin, both directions
• Retainage and net payment due
• Payroll burden per hour
• Concrete takeoff in cubic yards
• Lumber in board feet, plus stud counts

YOUR JOB BOARD
Open the app and see what to do today: your next scored set, your weakest subject, a daily drill, missed questions and a countdown to your exam date.

STUDY EVERY SUBJECT
• Scored ten-question practice sets with results by subject
• Multiple choice, true/false, flashcards and term matching
• Missed-question review and practice by subject
• Searchable glossary and formulas with worked examples
• The exam outline, the exam's reference list and official links

Trade subjects follow the outline in the PSI candidate bulletin: General Requirements; Site Construction; Concrete; Masonry; Metals; Wood; Thermal and Moisture Protection; Doors, Windows, and Glazing; Finishes; Mechanical and Plumbing Systems; Electrical Systems; and Procurement and Contracting Requirements.

Business and law subjects: Licensing, Estimating and Bidding, Business Organization and Financial Management, Tax Laws, Labor Laws, Project Management and Lien Law, Contracts, Risk Management, and Environmental and Safety. States run these exams, and the outline differs by state. This app teaches common topics, not one state's law.

WHERE THE EXAM COUNTS
NASCLA's participating list (read November 2026) names agencies in Alabama, Arizona, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, Nevada, New Mexico, North Carolina, Oregon, South Carolina, Tennessee, Utah, Virginia, West Virginia and the U.S. Virgin Islands. Conditions differ widely, and the app shows what NASCLA says for each. The exam is not a license. Confirm your requirements with your state agency.

FREE AND PREMIUM
A full scored practice set, the first drill in every group, a sample of every study mode and the whole tool belt are free. Premium unlocks the full library with a subscription or a one-time lifetime purchase.

Official sources (linked in the app): nascla.org, the PSI candidate bulletin at psiexams.com, OSHA 29 CFR 1926 at osha.gov, EPA stormwater guidance at epa.gov, the U.S. Department of Labor at dol.gov, irs.gov and uscis.gov.

This app is an independent study aid. It is not affiliated with, endorsed by, or sponsored by the National Association of State Contractors Licensing Agencies (NASCLA), PSI Services LLC or any state licensing agency. NASCLA is a mark of its owner. This is not a government app and does not provide any government service. Licensing, lien, tax and labor rules vary by state. Examples are not legal, tax or licensing advice.

Privacy policy: https://www.dmpenterprisellc.com/privacy-policy

What’s new

First release: plan-set takeoff and book finder drills, a free tool belt, and study modes for the NASCLA commercial exam outline and common business and law topics.