Core scenario
Roadside stop
The officer walks up to the window. Documents, trip, cargo, hours of service, signs, and the instructions you are given.
Know exactly what to say at a roadside truck inspection.
Practice the conversation with the officer before you are having it for real. Built for CDL truck drivers: hear the questions, answer them out loud in English, and find out what to work on.
Know who is ready before they hit the road.
Buy seats for your students, watch readiness by scenario, and see who needs another hour before they go out. Ninety days from the day you buy, for the whole school — move seats between students inside it as your intake changes.
Know who is ready before they hit the road.
Monthly, by active driver. Assign seats, track roadside and weigh-station readiness separately, and find the drivers who are stuck rather than the ones who are simply quiet.
Officer is asking
Trip
“Are you ahead of schedule or running late?”
Are you ahead of schedule or running late?
Does your CDL cover this type of vehicle?
Are the tiedowns damaged at all?
Are these the papers for the load you're carrying right now?
Are these unidentified miles yours?
Are all your lights working?
Back up a few feet.
A sign says '13 FT 6 IN CLEARANCE.' What do you need to know before going under it?
Needs attention
AH
Ahmed HassanWeigh station · officer instructions
! Needs help
FA
Fatima Al-SayedRoadside · hours of service
! Needs help
CM
Carlos MendozaCargo · improved after retest
↑ Improving
Roadside stops
Weigh stations
Inspection instructions
Hours of service
Shipping papers
Cargo & seals
Road signs
License & endorsements
Help in 11 languages
Two ways to get MockStop
Practice on your own — or get a seat from your school or employer.
Same app, same training. The only difference is who pays.
For drivers
Start free, pay if you want more
Download the app and take a 2-minute Mock Stop without signing up. Keep going for free, or buy Ready Pass when you want the full stops.
For organizations
Your school or carrier pays
In a CDL school, or driving for a fleet? Ask them for a MockStop seat. They pay — and your account and your progress stay yours if you leave.
How it works for organizations
The moment it matters
Two minutes at the window decide the rest of your day.
An officer asks where you are going, what you are carrying, and how long you have been driving. MockStop is the twentieth time you have answered it, not the first.
How MockStop works
Not just a score. A way to get better.
A number on its own tells you nothing you can act on. MockStop finds the skill that let you down, practices it, then asks again to see whether it moved.
01
Practice
An officer asks. You answer out loud, in English, the way you would at the roadside.
02
Get feedback
What you got across, what you did not, and which words let you down — with the evidence.
03
Train the weak skill
Five minutes on the one thing that cost you, not a general lesson you have heard before.
04
Retest it
A stop that asks only about that skill, so you find out whether the training worked.
Inside the app
Two minutes, five screens.
The officer asks. You answer out loud, in English. You find out what got across and what did not — and then you practice the part that did not.
The questions
457 real questions across 10 categories.
Straight from the bank the app uses. Every one is a sentence a driver has to understand first and answer second.
Trip
Are you ahead of schedule or running late?
License
Does your CDL cover this type of vehicle?
Cargo
Are the tiedowns damaged at all?
Papers
Are these the papers for the load you're carrying right now?
Hours
Are these unidentified miles yours?
Equipment
Are all your lights working?
Instruction
Back up a few feet.
Signs
A sign says '13 FT 6 IN CLEARANCE.' What do you need to know before going under it?
Two of these are not questions at all. “Pull forward into the inspection bay, set your brakes and stay in the cab” is three instructions in one sentence, and getting it wrong looks like non-compliance rather than a language problem.
Train for real situations
Every kind of stop, practiced separately.
Being ready at the roadside is not the same as knowing what to do inside a scale house, so the two are never averaged together.
Core scenario
Weigh station
The scale, the bay and the inspection building — and the commands that come with them, which drivers report finding hardest.
42 road signs, and what to do about each one
Readiness
Know where you stand — stop by stop.
Six skills, measured separately, so you know whether the problem is hearing the officer or finding the words.
68
Roadside readiness
Officer comprehension
73
Explaining in your own words
71
Road signs
– Not assessed
Roadside vocabulary
56
Hours-of-service questions
64
Following instructions
79
- Being misheard never counts against you. A noisy yard is not a wrong answer, and it is reported separately from your score.
- Answering in your own language is never marked wrong. At a real stop the officer would ask again. So does MockStop.
- A skill you have not practiced reads “Not assessed”. Never zero. Not having started is not the same as doing badly.
For schools & fleets
Know who’s ready before they hit the road.
Buy seats, hand them out, and see who needs another hour. Every driver flagged for attention comes with the reason and the evidence.
Seats, not licences to chase
Add a driver by email address. There is no code for them to type and no link to lose — the seat is theirs the moment they sign in.
Readiness by scenario
Roadside and weigh station, kept apart. An unpracticed scenario reads – Not assessed, never 0%.
Attention needed, explained
“Three targeted retests and their best score has not moved.” A date, a count, a score — never a hidden risk rating.
For drivers
You know the job. Practice the conversation.
Privately, at your own pace, as many times as you want — before the roadside is the first time you have it.
Nobody is watching
No class, no instructor, no one in the cab. Get it wrong as many times as it takes.
Help in your language
English, Spanish, Punjabi, Russian, Hindi, Uzbek, Ukrainian, Arabic, Haitian Creole, Portuguese or French. The officer only ever speaks English, because that is the part being checked.
Your voice is never recorded
The recogniser runs on your phone. MockStop receives the words, never the audio.
No phone to hand? Practice in your browser.
The same MockStop, the same account, the same stops — on a laptop or a school computer, with nothing to install.
Open MockStop in your browserSpeak your answers in Chrome or Edge, or type them in any browser.
Help in 11 languages
Practice in English. Understand in yours.
Every explanation, every correction and every word of training is in the language you choose.
- English English
- Español Spanish
- ਪੰਜਾਬੀ Punjabi
- Русский Russian
- हिन्दी Hindi
- O‘zbekcha Uzbek
- Українська Ukrainian
- العربية Arabic
- Kreyòl Ayisyen Haitian Creole
- Português Portuguese
- Français French
The officer only ever speaks English. That is the part being checked, so translating it would be practicing the wrong conversation. Your language is for understanding what went wrong and how to fix it.
Pricing
Priced for how you train.
Three ways to buy, because a driver, a school and a carrier are not buying the same thing. Every price here comes from the same engine as your invoice.
Drivers
Practicing on your own
Free
to start — no sign-up, no card
- A 2-minute Mock Stop, free and unlimited
- Your readiness and all six skills
- Help in 11 languages; the officer always speaks English
- Ready Pass unlocks full stops, targeted training and retests
Ready Pass is bought inside the app, so it lives with your account rather than with a school that might stop paying for you.
Get the app Use MockStop on WebCDL schools & training
You buy seats for your students
$79
$59
per student · 90-day term
Introductory Pricing
- 10 seat minimum, paid once
- 90 days from the day you buy, for the whole licence
- Move a seat to the next student whenever one graduates
- Portal: readiness by scenario, Attention Needed, reports
25 students
$1,975
$1,475
You save $500 on that order.
Start your free trial14 days free · no card
Fleets & carriers
Monthly, for the drivers who are active
$29
$24
per driver / month
Introductory Pricing · first 3 months
| 1–24 drivers |
|
|---|---|
| 25–99 drivers |
|
| 100–499 drivers |
|
| 500+ drivers | Talk to us |
- Graduated, so adding a driver never makes your bill smaller
- Add and remove drivers as you go; cancel any time
- Same portal, with roadside and weigh station kept apart
40 drivers
$1,304
$1,080/mo
Then $1,304/mo. We would rather say so here than have you find out on month 4.
Start your free trial14 days free · no card
Over 499 drivers or 499 students, pricing is quoted individually — email hello@mockstopapp.com and you will hear back the same business day.
Questions
Straight answers.
What questions do officers ask truck drivers?
Questions about your trip, who you drive for, your CDL, your shipping papers and load, your hours and ELD, and your truck — plus instructions you have to follow, and then road signs. See the questions officers ask, with sample answers.
Is this an official test?
No. MockStop is practice. Readiness is a training indicator, not an official English proficiency assessment, and it does not predict any inspection result.
Do you record my voice?
No. The recogniser runs on your phone and MockStop receives the words, never the audio. There is no column, no file and no request that could carry a recording.
If my school pays, do they own my account?
No. A seat is added access, not replaced access. If they take the seat back you keep every stop you practiced, and anything you pay for yourself is untouched.
What can my employer see?
Your readiness, your skill scores, how many stops you have taken and when you last practiced. Not your audio, and not a transcript of what you said.
When do the 90 days start?
The day you buy the licence. All your seats run to the same end date, which is the one on your invoice — so “when does this run out” has one answer rather than one per student.
Inside the term you can reassign seats as often as you like. A student who finishes in week six frees their seat for somebody else for the remaining six. If you enrol on a rolling basis, buy a term per intake rather than buying ahead — a seat handed out on day 85 is worth five days, and we would rather say so here than have you find out.
The roadside shouldn’t be the first time you practice the conversation.
