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KAIST Student Wins Apple Swift Challenge with Viola App

5/8/2026

Summary

Jung Yoon-jae Wins Swift

Jung Yoon-jae, a 21-year-old KAIST computer-engineering student, was named one of Apple’s 50 Swift Student Challenge winners.
He built LeViola, an app that lets users practice viola by tracking hand and bow motion with a camera.
LeViola uses Apple’s on-device machine-learning to detect left-hand notes and right-arm angle.
Jung and the other winners will attend the World Developers Conference in Cupertino, California, next month.

Summary

Apple Announces Winners

Apple announced 350 Swift Student Challenge winners from 37 countries who will receive AirPods Max 2 and a one-year Developer Program membership.
Fifty Distinguished Winners will be invited to Apple Park in Cupertino during WWDC 2026, June 8–12.
Creators used AI tools including Claude, OpenAI’s Codex and Google Gemini to build the four featured accessibility apps.
The initiative says past participants have launched careers, founded companies, and started organizations for broader impact.

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Jung Yoon-jae Wins Swift

Jung Yoon-jae, a 21-year-old KAIST computer-engineering student, was named one of Apple’s 50 Swift Student Challenge winners.
He built LeViola, an app that lets users practice viola by tracking hand and bow motion with a camera.
LeViola uses Apple’s on-device machine-learning to detect left-hand notes and right-arm angle.
Jung and the other winners will attend the World Developers Conference in Cupertino, California, next month.

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