Your radio calls,
graded like a CFI.
ATC gives the transmission. You read it back. AI grades every element against FAA AIM standards — missed hold shorts, wrong squawk, non-standard phrases, all of it.
“Cessna Four Sierra Uniform, Hilo Ground, taxi to runway two eight left via Bravo, hold short of runway two eight right, altimeter two niner niner two.”
“Taxi to two eight left via Bravo, Four Sierra Uniform.”
Missing hold short — a safety-critical element. Causes runway incursion in Class D.
Learn the radio like a game
Bite-sized drills that make the basics automatic — phonetics, numbers, hold-shorts, emergencies. Build a streak, earn XP, lose a heart when you slip. No mic, no AI, works offline.
What is the phonetic word for the letter R?
Six ways to drill
The path · 10 units, 22 lessons
Then key the mic for real
When the basics are automatic, step up to the live sim — real ATC, and Claude grades every element of your read-back.
ATC transmits
A realistic clearance or instruction — taxi, takeoff, pattern entry, flight following, IFR clearance.
You read it back
Type exactly what you'd say on the radio. No hints, no word bank. Just you and the mic.
Claude grades it
Every required element checked against FAA AIM Chapter 4. Missing a hold short? Automatic fail, every time.
What gets graded
The same things your CFI is watching for — and the same things that cause runway incursions when missed.
52 scenarios across every phase of flight
From first radio call to IFR clearance delivery.
Questions, answered
Do I need a microphone?
Nope. Ground School is all taps and choices. In Live Comms you can type your read-back or use your mic — your call.
Is it actually free?
Yes. Ground School is free and works offline. Live Comms gives you 5 AI-graded scenarios a day free; unlimited is $15/mo.
Is the content FAA-accurate?
Every scenario and drill is built against the FAA Aeronautical Information Manual (AIM) Chapter 4 — the same standard your CFI and examiner use.
Will this help on my checkride?
That’s the point. Radio work trips up more student pilots than almost anything — hold-shorts, read-backs, and phraseology are exactly what gets drilled and graded here.
Does it really work offline?
Ground School drills run entirely on your device — perfect for the ramp, the run-up area, or a flight with no signal.
Simple pricing
Free while you’re getting started. Upgrade when you want more.
- ✓Full Ground School — all drills
- ✓Works offline · no mic
- ✓5 AI-graded scenarios/day
- ✓Unlimited scenarios
- ✓All airport classes
- ✓All phases of flight
- ✓Score history
- ✓Everything in Solo
- ✓Assign scenarios to students
- ✓Student grade reports
- ✓Custom scenario builder
Ready to stop second-guessing your calls?
Warm up with a few drills, then key the mic for the scenario that scares you most — hold short, runway crossing, first IFR clearance.