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About
Pass your CDL the first time. CDL Prep gives you 700+ real-format practice questions, an explanation on every single one, and mock exams built to the same question count and the same 80% pass line as the tests you will actually sit. No fluff, no account, no signal required. EVERY TEST IN ONE APP • General Knowledge • Air Brakes • Combination Vehicles • Hazardous Materials • Tank Vehicles • Doubles & Triples • Passenger Transport • School Bus • Pre-Trip Inspection All 700+ are in the app the day you install it. Nothing is a "coming soon." MOCK EXAMS THAT FEEL LIKE THE REAL THING Timed, graded the moment you finish, and followed by a full answer review so you see exactly which ones you got wrong and why. Questions you have not seen yet come first, so a second sitting is a genuinely new test — not the same twenty questions again. EVERY WRONG ANSWER EXPLAINED Miss one and you get the reasoning immediately, in plain language, with the handbook or regulation section it came from. That is the difference between memorizing an answer and knowing the material when the wording changes on test day. SMART REVIEW THAT DOES THE REMEMBERING A five-box spaced-repetition system schedules each question for the moment you are about to forget it. Anything you miss goes back to the front. You just open the app and study what it hands you. KNOW WHEN YOU ARE ACTUALLY READY Set your test date and watch a readiness figure that blends how much of each deck you have mastered with your best full-format mock. Honest numbers only — an estimate, clearly labeled, never a fabricated score or a promise. A daily streak, a daily question, and advanced study stats round it out. STUDY ANYWHERE Fully offline. No account, no email, no sign-up. Your progress lives on your device and never leaves it. Study in the yard, in the sleeper, or waiting at the DMV counter. NOT AFFILIATED WITH ANY GOVERNMENT AGENCY CDL Prep is an independent study aid from Syanac. It is not affiliated with the FMCSA, any state DMV/DPS, or any government agency, and it does not provide or facilitate government services. Practice scores are an estimate, not a guarantee. Rules change — check the current handbook for the state that will license you before test day. OFFICIAL SOURCES — THE COMPLETE LIST Our questions are written from these official government publications, and no others: • FMCSA regulations, 49 CFR Parts 380-397: https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III • California DMV Commercial Driver Handbook: https://www.dmv.ca.gov/portal/handbook/commercial-driver-handbook/ • Texas DPS Commercial Motor Vehicle Drivers Handbook: https://www.dps.texas.gov/section/driver-license/texas-commercial-motor-vehicle-drivers-handbook • U.S. FHWA Manual on Uniform Traffic Control Devices (MUTCD): https://mutcd.fhwa.dot.gov/ The same list appears in the app under About → Sources. Install it, take one mock exam tonight, and find out where you really stand. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://kanac.github.io/syanac-legal/
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