Practise the six ICAO criteria with real ATC scenarios. AI-graded feedback after every scenario. Track your level, find your weakest criterion, fly internationally with confidence.
8 ATC scenarios
Engine fire, decompression, TCAS RA, more
AI evaluation
Score on each of the 6 ICAO criteria
Track to Level 6
Operational 4 → Extended 5 → Expert 6
Your final ICAO level is pulled down by the weakest descriptor. This turns saved scores into a weekly repair path instead of vague English practice.
First baseline
Fluency
No scorecard yet. Start with a descriptor scenario or coach attempt.
Day 1
Use the coach or a full mock to create the first scorecard across the six ICAO descriptors.
Proof
At least one saved attempt, not just reading theory.
Day 2
Work the descriptor currently holding the whole ICAO level down.
Proof
One weak-descriptor scenario completed and reviewed.
Day 3
Replay ATC-style audio and force clarification language: say again, confirm, verify, unable.
Proof
No missed intention after replaying the scenario.
Stress, rhythm, intonation
Pronunciation, stress, rhythm, and intonation are influenced by the first language but only sometimes interfer…
Grammar & sentence patterns
Basic grammatical structures and sentence patterns are used creatively and are usually well controlled. Errors…
Range and accuracy
Vocabulary range and accuracy are usually sufficient to communicate effectively on common, concrete, and work-…