My mission
My goal is to generally increase MAUs (Monthly Active Users). I approach this by both working on small, continual improvements to the user experience and developing large features concurrently. One of the improvements that I designed to do this was Sticker Previews.
I’ve been leading the design of some LINE MESSENGER features from Dec 2013 as a Product Designer and UX Designer.


My Role
*Service Planning
*UX Design
*User & Other service Research

*Design & System Direction
*Product Management

PROBLEMS & DISCOVERIES
Originally, sending a sticker was a one-tap action, but users often gave feedback that they’d accidentally send the wrong stickers in chats. After receiving user feedback, I realized that I often sent stickers by mistake as well.
User Research
Wireframe
Design & System Direction
Approach
Our approach was to add a preview step to sending stickers. Instead of immediately sending a sticker, the tapped sticker is focused and enlarged, and the user must tap it again to send it. My goal for the feature was to help users send the correct stickers without interfering with existing chat functionality.

Achievement
After launching Sticker Previews, negative user sentiment about sending the wrong sticker decreased, while positive user sentiment about ease-of-use increased. This is one of several examples of products we launched to increase MAUs. Through testing and observing metrics, we can improve the user experience and grow MAUs in a timely manner.
 As a result of our experiments, MAUs grew 6% from Q3 to Q4 2014, and 13% from Q4 to Q1 2015. In total, we won about 35 million MAUs in half a year.



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