Personal projects by Joonhwan Jeon, free to use on iOS, Android and the web.
A mood diary that records each day as a color
Capture how you feel each day as a color and watch your calendar fill up. A mood tracker with a yearly widget and AI reflection notes.
A shared calendar for the people who matter
A couple and family calendar for sharing plans in real time and staying in touch.
An AI travel map diary
A travel diary app. Upload your photos and AI rebuilds your travel route for you.
A community map for the places you keep
Import your Google My Maps and Naver Map lists, keep them offline, merge them into one map and share it with friends. Check off the places you have been to track how much you have visited.
Unplanned fun, verified serendipity
Suggests random trip courses you can actually make, based on your location, transport and time, and turns choosing into a game. Includes couple linking, taking turns to draw, couple stamps and anniversaries.
Move the dot, dodge the bombs, find the gate
A free puzzle game with single, double and custom modes, playable offline.
What elected officials promised, and what they did in office
A Korean-language web service that sets the pledges of Korean lawmakers, governors, mayors and education superintendents side by side with public records such as bills, votes, attendance and assets. It carries only officially published records, never opinions.
Shoot to the shape, then watch it as one video
Take photos and videos against the same shape guide every day, and ShapeLog stitches them into one consistent video.