Clearspar Radio Trainer
Practice pilot radio calls
About
Practice pilot radio communications with realistic ATC transmissions and instant grading against FAA standards. Offers drills for phraseology, numbers, and listening comprehension, with scenarios covering all flight phases. Free to start with limited daily access.
What's New in Clearspar Radio Trainer
1.1.0
July 22, 2026
What's new in 1.1.0: • Flashcards — quick phonetic, number, and call sign drills on iPhone and Apple Watch. Start a set on one, pick it up on the other. • Live Activities — keep an eye on your current scenario step right from the Lock Screen and Dynamic Island. • Refer a friend (or your CFI) — you both get a free month of Pro when they join. • Accessibility — VoiceOver improvements, Dynamic Type support, and a wider letter-and-line spacing reading option. • Assorted fixes and polish.
MoreSubscription plans
Solo Pilot
Unlimited radio training, AI grading, and all scenarios
Developer apps
FAQ
What is Clearspar Radio Trainer?
Clearspar Radio Trainer is an educational app designed to help pilots practice radio communications. It simulates Air Traffic Control (ATC) transmissions and provides instant feedback on readbacks based on FAA standards.
How does Clearspar Radio Trainer help with learning?
It uses over 75 graded scenarios covering all flight phases, from ground to en route and emergencies. The app focuses on exact phraseology, why readbacks matter, and common mistakes to avoid.
Can I practice with my own airport's frequencies?
Yes, you can enter your N-number's base to practice with the actual frequencies, runways, and taxiways of your real home field.
What kind of drills does Clearspar Radio Trainer offer?
It includes Live Comms for voice readback grading, Ground School for phonetic alphabet and phraseology drills, and a Listening drill to copy calls through static. There's also a mock oral exam section for checkride preparation.
Is Clearspar Radio Trainer free to use?
Ground School and 5 graded radio scenarios per day are available for free. Unlimited access requires a 'Solo Pilot' subscription.
What are the subscription options for Clearspar Radio Trainer?
The 'Solo Pilot' subscription offers unlimited access and is a monthly auto-renewing subscription priced at $9.99. Instructors can opt for 'CFI Pro' to assign scenarios and track students.
Does Clearspar Radio Trainer have ads?
No, Clearspar Radio Trainer does not contain advertisements. The app is ad-free.
What devices is Clearspar Radio Trainer available on?
Clearspar Radio Trainer is available on Apple Watch, iPhone, and iPad, offering flexibility for practice on various devices.