CDL Permit Ready: CLP Prep
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About this app
CDL Permit Ready is an independent study app made by SimpleDuo. It is not affiliated with, endorsed by, or sponsored by the FMCSA, the U.S. Department of Transportation, or any state driver licensing agency. It is study material, not driving instruction, and it does not issue permits or licenses.
OFFICIAL SOURCES
Every question in this app is written from, and cited to, the official public documents below. Read them yourself — the full list with direct links is at https://cdl.simpleduo.com/sources
• 49 CFR Part 383 — CDL standards and requirements
https://www.ecfr.gov/current/title-49/part-383
• 49 CFR Part 393 — parts and accessories for safe operation
https://www.ecfr.gov/current/title-49/part-393
• Texas DPS — Commercial Motor Vehicle Driver Handbook (DL-7C)
https://www.dps.texas.gov/internetforms/Forms/DL-7C.pdf
Your first driving paycheck is waiting on one test. CDL Permit Ready is CDL permit practice test prep: ten minutes a day and a readiness score that tells you the day you're actually safe to book your CLP knowledge test.
WHAT CHANGES FOR YOU
• You stop guessing. Readiness models what you'll still remember on exam day — not how many questions you've clicked through. When it reads 90%, book.
• You stop wasting evenings. Spaced review brings each miss back right before you'd forget it, and skips what you already know. A question counts as mastered only once you've had it right twice, days apart.
• You walk in having already passed — three times. The CLP is separate exams, and the mocks mirror that: General Knowledge (50 questions, 60 minutes), Air Brakes (25 questions), and Combination Vehicles (20 questions), each timed and scored at the real 80% pass line.
SPANISH, DONE HONESTLY
Turn on "Ayuda en español" and every question, every answer choice, and every explanation shows Spanish under the English. The real test is in English — the Spanish is there to make sure you understand it, never to replace it. Terminology is checked against the official Spanish-language CDL handbooks (perno maestro, mandíbulas, frenos de aire), not machine-translated on the fly.
WHY YOU CAN TRUST THE ANSWERS
Every question carries a plain-English explanation and a citation to the CDL manual section or federal rule it came from, so you can always check our work against the source. The bank is written from the official state CDL manuals and 49 CFR Parts 383 and 393, and every numeric claim — air-pressure limits, tread depths, BAC, permit validity — is machine-traced to those texts before it ships.
YOUR STATE
The core rules are federal and the bank covers them in depth. Pick your test state in setup or Settings; Texas, California, Florida, Georgia, Illinois, Pennsylvania, North Carolina and Ohio get state-specific questions folded into your plan, with more states on the way.
WHAT WE WON'T CLAIM
No pass rate, no "3× faster". We have no study on this app that would let us say those things. What we stand behind: the content is checked against primary sources and cited, and the plan doesn't spend your time on questions you already know.
ONE PURCHASE
CDL school costs thousands; this app is a one-time $19.99 — no subscription, no ads, no account. Try it first: 10 questions a day, free.
PRIVATE BY DEFAULT
No sign-in, no analytics, no advertising SDKs. Your progress stays on your phone and travels to a new one through your own Google backup.
FOUND A WRONG ANSWER?
Every question has a flag button. A wrong answer in a test-prep app is the one unforgivable bug, and reports go to the front of the queue.
Privacy: https://cdl.simpleduo.com/privacy
Terms: https://cdl.simpleduo.com/terms
OFFICIAL SOURCES
Every question in this app is written from, and cited to, the official public documents below. Read them yourself — the full list with direct links is at https://cdl.simpleduo.com/sources
• 49 CFR Part 383 — CDL standards and requirements
https://www.ecfr.gov/current/title-49/part-383
• 49 CFR Part 393 — parts and accessories for safe operation
https://www.ecfr.gov/current/title-49/part-393
• Texas DPS — Commercial Motor Vehicle Driver Handbook (DL-7C)
https://www.dps.texas.gov/internetforms/Forms/DL-7C.pdf
Your first driving paycheck is waiting on one test. CDL Permit Ready is CDL permit practice test prep: ten minutes a day and a readiness score that tells you the day you're actually safe to book your CLP knowledge test.
WHAT CHANGES FOR YOU
• You stop guessing. Readiness models what you'll still remember on exam day — not how many questions you've clicked through. When it reads 90%, book.
• You stop wasting evenings. Spaced review brings each miss back right before you'd forget it, and skips what you already know. A question counts as mastered only once you've had it right twice, days apart.
• You walk in having already passed — three times. The CLP is separate exams, and the mocks mirror that: General Knowledge (50 questions, 60 minutes), Air Brakes (25 questions), and Combination Vehicles (20 questions), each timed and scored at the real 80% pass line.
SPANISH, DONE HONESTLY
Turn on "Ayuda en español" and every question, every answer choice, and every explanation shows Spanish under the English. The real test is in English — the Spanish is there to make sure you understand it, never to replace it. Terminology is checked against the official Spanish-language CDL handbooks (perno maestro, mandíbulas, frenos de aire), not machine-translated on the fly.
WHY YOU CAN TRUST THE ANSWERS
Every question carries a plain-English explanation and a citation to the CDL manual section or federal rule it came from, so you can always check our work against the source. The bank is written from the official state CDL manuals and 49 CFR Parts 383 and 393, and every numeric claim — air-pressure limits, tread depths, BAC, permit validity — is machine-traced to those texts before it ships.
YOUR STATE
The core rules are federal and the bank covers them in depth. Pick your test state in setup or Settings; Texas, California, Florida, Georgia, Illinois, Pennsylvania, North Carolina and Ohio get state-specific questions folded into your plan, with more states on the way.
WHAT WE WON'T CLAIM
No pass rate, no "3× faster". We have no study on this app that would let us say those things. What we stand behind: the content is checked against primary sources and cited, and the plan doesn't spend your time on questions you already know.
ONE PURCHASE
CDL school costs thousands; this app is a one-time $19.99 — no subscription, no ads, no account. Try it first: 10 questions a day, free.
PRIVATE BY DEFAULT
No sign-in, no analytics, no advertising SDKs. Your progress stays on your phone and travels to a new one through your own Google backup.
FOUND A WRONG ANSWER?
Every question has a flag button. A wrong answer in a test-prep app is the one unforgivable bug, and reports go to the front of the queue.
Privacy: https://cdl.simpleduo.com/privacy
Terms: https://cdl.simpleduo.com/terms
CDL permit practice test prep. Know the day you're ready. Every answer cited.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesApp info and performance
- Data is encrypted in transit
- You can request that data be deleted
What’s new
First release.
645 CDL permit questions, every one cited to the manual section or federal rule it came
from. Timed mocks for General Knowledge, Air Brakes, Combination Vehicles and all five
endorsements — HazMat, Tanker, Passenger, School Bus, Doubles & Triples. Pick only the
ones you are testing for; the rest stay out of your plan and your score.
Eight states add their own questions. Spanish under every question.
One purchase. No subscription, no ads, no account.
645 CDL permit questions, every one cited to the manual section or federal rule it came
from. Timed mocks for General Knowledge, Air Brakes, Combination Vehicles and all five
endorsements — HazMat, Tanker, Passenger, School Bus, Doubles & Triples. Pick only the
ones you are testing for; the rest stay out of your plan and your score.
Eight states add their own questions. Spanish under every question.
One purchase. No subscription, no ads, no account.
App support
About the developer
高超
hello@ourbiblemoments.com
上海浦东新区周浦镇瑞安路80弄中城苑
浦东新区, 上海市
China
201318
