iOS Developer

Building Apps
for Everyday
Life

cylcode

Hi, I'm YILI CHO (cylcode)

As an iOS developer and mixing engineer, I blend creativity with functionality in both app development and music production.

Skills

What I Work With

The tools I use to build, create, and bring ideas to life.

Xcode
Xcode & SwiftUI
Apple's primary IDE for building iOS, macOS, and watchOS apps — paired with SwiftUI's declarative framework for crafting beautiful, responsive interfaces.
SwiftSwiftUISimulator
Avid Pro Tools
Avid Pro Tools
Industry-standard digital audio workstation for professional recording, mixing, and audio post-production workflows.
Audio EditingMixingRecording
Logic Pro
Logic Pro
Apple's professional music production software for composing, arranging, and producing tracks — from sketching ideas to full studio-quality mixes.
Music ProductionCompositionMIDI
Final Cut Pro
Final Cut Pro
Apple's pro video editing software for cutting, color grading, and delivering polished video content with a fast, magnetic timeline workflow.
Video EditingColor GradingMotion
Adobe Illustrator
Adobe Illustrator
Vector-based design tool for creating app icons, UI mockups, illustrations, and scalable graphics that look sharp on every screen size.
Vector DesignApp IconsUI Mockups
Claude
Claude
Anthropic's AI assistant — used for brainstorming app ideas, debugging Swift code, drafting app descriptions, and accelerating development workflows.
AI AssistantCode ReviewBrainstorming
Portfolio

iOS App Projects

9 apps across sports, wellness, music, and games — each one built with Swift and a lot of curiosity.

BS Board
🏀App Screenshot
iOS App
Project 01
BS Board

A clean, intuitive basketball scoreboard app. Keep track of scores, periods, and game time — all from your pocket during any game.

XcodeSwiftUI
EZ Breathe
🌬️App Screenshot
iOS App
Project 02
EZ Breathe

A simple, calming breathing exercise app. Guided breath patterns help users reduce stress and reset their focus — anytime, anywhere.

XcodeSwiftUI
K13 Piano
🎹App Screenshot
iOS App
Project 03
K13 Piano

Your personalized pocket piano. 13 keys in your hand — play melodies, learn chords, and explore music wherever you go.

XcodeSwiftUI
K20 Piano
🎼App Screenshot
iOS App
Project 04
K20 Piano

20 keys, more range, more music. An expanded pocket piano that lets you play fuller melodies and explore a wider musical palette on the go.

XcodeSwiftUI
Baseball Snake
App Screenshot
iOS App
Project 05
Baseball Snake

The classic Snake game, reimagined with a baseball twist. Collect baseballs, grow your snake, and dodge your own trail in this addictive arcade experience.

XcodeSwiftUI
Sky Versus
⚔️App Screenshot
iOS App
Project 06
Sky Versus

Two players, one device, epic battles in the sky. A local multiplayer combat game where you and a friend fight for aerial dominance on the same screen.

XcodeSwiftUI
We Wall Sit
🦵App Screenshot
iOS App
Project 07
We Wall Sit

Build strong legs and a solid core anywhere, anytime. A focused workout timer app for wall sit exercises — no equipment needed, just a wall and determination.

XcodeSwiftUI
EZ Medication
💊App Screenshot
iOS App
Project 08
EZ Medication

Never miss a dose. A simple, straightforward medicine reminder app that keeps your health routine on track without unnecessary complexity.

XcodeSwiftUI
GTA Chords
🎸App Screenshot
iOS App
Project 09
GTA Chords

The best guitar chord dictionary for new players. Clear diagrams, easy navigation, and a comprehensive chord library — everything a beginner guitarist needs in one app.

XcodeSwiftUI
Contact

Let's Connect

Whether it's a collaboration, a project idea, or just a chat about iOS development and music — feel free to reach out anytime.