My Mobile App Projects

This Page introduces mobile applications I have developed and published.


K-PopRama Slang

A Korean slang dictionary for expressions commonly used in K-Pop and K-Dramas. The app provides English and Korean explanations, example sentences, search, favorites, and flashcard-based study features.

Available on

- Android : Google Play

- iOS : App Store




K-PopRama Slang Plus

The ad-free version of K-PopRama Slang, providing the same core dictionary and study features without advertisements.

Available on

- Android : Google Play

- iOS : App Store



K-Pop Celeb Like Me

A photo-based mobile application that finds K-Pop celebrities who resemble the user. The app analyzes an uploaded photo and presents the user's top celebrity matches.

Available on

- Android : Google Play

- iOS : App Store



K-Pop Sudoku

A Sudoku game combined with K-Pop themed quizzes and visual themes.

Available on

- Android : Google Play



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About this blog

Hello, and welcome to my blog. I am an independent mobile app developer interested in building and publishing mobile applications with React Native, Expo, TypeScript, and JavaScript. This blog documents what I learn and experience while developing real-world mobile applications. I write about development techniques, debugging, architecture, UI implementation, third-party libraries, app publishing, and problems I encounter during the development process. Rather than simply introducing programming concepts, I try to document the actual process behind building applications — including things that did not work as expected, problems I encountered, how I investigated them, and how I eventually solved them. My background is in mechanical engineering, and I have experience working on engineering development projects, including tractor transmission design and development. My transition from mechanical engineering to software development is also part of what led me to start this blog. Some of th...
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How I prepared my first web app for search engines

When I started developing my first mobile app, K-Pop Celeb Like Me, I also needed to learn how to build and publish a website. I had no formal programming background, so I learned HTML, CSS, JavaScript, React, and React Native through online tutorials and hands-on practice. I chose React Native because I wanted to develop an app for both iOS and Android without having to build two completely separate native apps using Swift and Kotlin. Looking back, I found it helpful to follow a working example first and then study the concepts behind it as I gained experience. Building and deploying the website For development, I used my MacBook, Node.js, Visual Studio Code, Homebrew, Git, Android Studio, Xcode, and nvm. Each tool served a different purpose in my development workflow. Before integrating the web content into my mobile app, I created a simple website using HTML, CSS, and JavaScript. I also experimented with Google's Teachable Machine to explore how an image-recognition model could ...
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