Written test prep
State-by-state practice questions with a plain explanation for every answer. Missed questions come back until you know them.
Coming soon
Roger That. Get your CDL.
Practice tests, pre-trip walkthroughs, and truck-backing drills in one app. English and Spanish. Works offline. No signup.
No account needed. Your progress saves on your device.
Content updated November 2026. Rules change, so always check your state's current manual.
Coming to
- Apple App Store
- Google Play
- iPhone
- iPad
- Android
Test readiness
Meet Roger
Roger is your dispatcher. He sends you out on loads, which are your lessons, drills, and practice tests, tells you straight when you got one wrong, and tells you why. When your readiness gauge hits the green, he says the line: Roger that.
Walk the truck. Find the defect.
Learn the pre-trip the way the inspector tests it. Name each part, say what you are checking, and spot the problems planted on the truck.
Back it in. Score it like the test.
Straight-line, offset, parallel, and alley dock drills with real tractor-trailer turning. Get out and look, take your time, and watch the cones.
Air brakes, finally clear.
The gauges, the buzzer, the spring brakes, and the leak test, explained step by step until the numbers stick.
Everything you need to pass
Built around how the CDL is actually tested: the written exam, the pre-trip inspection, the backing skills, and the road.
Pre-trip inspection
Walk around a 3D truck, name each part, and spot the planted defects. Practice the full air brake check step by step.
Backing and yard skills
Straight-line, offset, parallel, and alley dock drills with real tractor-trailer turning, scored the way the test is.
Road scenarios
Short drives that coach your mirrors, speed, following distance, railroad crossings, and turns.
Hazard spotting
Tap the danger before it becomes an emergency. Train the space and speed habits a manual cannot teach.
Rules of the road
Hours of service, weight, cargo securement, and hazmat basics, explained with quick interactive exercises.
Learn it in Spanish. Pass it in English.
Every lesson is available in English and Spanish, with spoken audio. The key trucking terms stay visible in both languages, because the tests, the inspectors, and the road all use the English words.
Terms you will see in both languages
| English | Español |
|---|---|
| Kingpin | Perno rey |
| Air brakes | Frenos de aire |
| Pre-trip inspection | Inspección previa al viaje |
| Fifth wheel | Quinta rueda |
| Hours of service | Horas de servicio |
| Endorsement | Endoso |
For schools and fleets
Training a class or a fleet? Choose what your drivers study, including hazmat, and give them one code. The app scores each driver across your curriculum and makes a certificate. No accounts, no invoices.
Questions
Is the app available now?
Not yet. It is coming to the Apple App Store (iPhone and iPad) and Google Play (Android). Check back here for the launch.
Do I need an account?
No. There is no signup. The app is built to work offline and saves your progress on your device. We are building backup through your platform's own cloud saves: Apple iCloud and Google Play.
Does this replace CDL school?
No. Federal entry-level driver training rules require new Class A and B applicants to train with a provider listed on the FMCSA Training Provider Registry. Roger That CDL is a study and practice tool that works alongside that training.
Which states will it cover?
We are starting with a small number of states and adding more. Email us your state so we know where to go first.
Can I take my CDL test in Spanish?
It depends on your state. Check with your state licensing agency. Either way, the tests and roadside inspections use English trucking terms, so we teach both.
What does it cost?
The app is free to download and includes a free sample. Unlock the CDL training once for $9.99 in the US, the deeper hazmat section once for $4.99, or both. They are one-time purchases, not subscriptions, and there is no account.
How current is the material?
The lessons and questions were written or updated in the month shown on this page, and every update is logged on the Updates page. State packs are written from each state's official manual and name the edition they use. Rules change, so always check your state's current manual.