Developing educational mobile apps and practical web solutions to make learning and everyday tools engaging and efficient.
Hello! I'm "Junsa", an independent developer creating mobile apps and web services focused on education, utilities, and practical tools.
My mission is to build engaging, high-performance applications that make everyday tasks and learning more enjoyable.
Explore my published mobile apps and web projects
An engaging map quiz app to help you easily learn U.S. geography and state locations in a fun, game-like format.
A serverless web app built with FastAPI, AWS Lambda, and Google Hotels API. Allows users to cross-search vacant hotels on an interactive map with radius and price filters.
A fun and interactive game designed to help children master multiplication tables through exciting time-attack challenges!
A powerful companion app to support math learning and calculations, helping users efficiently improve their mathematical skills.
An interactive app designed to make learning Japan's prefectures and regions enjoyable with a friendly interface.
An enjoyable app to help users practice and master Kanji reading and writing consistently every day.
Have any questions, feedback, or business inquiries? Feel free to reach out!
Email Address
jun.sakai49@gmail.com