Exploring a time limit for replies
I explored a viewing time limit as a reason to reply sooner. The screen shown presents voice messages and characters; it does not specify what expires, the duration or what happens after expiry.

DESIGN CASE / Tomo
A conversation-app design inspired by my girlfriend’s need for timely replies when unsure about Korean. I designed voice-message and notification screens, and explored time limits and Live Activity as ways to encourage prompt responses.
01 / CONTEXT
Tomo began with my girlfriend’s need for timely replies when she was unsure about Korean. Even a short question could need an answer at a particular moment. If a reply arrives too late, the moment when you needed it may have passed. I wanted to give the other person a reason to respond now.
02 / DESIGN DECISIONS
I explored a viewing time limit as a reason to reply sooner. The screen shown presents voice messages and characters; it does not specify what expires, the duration or what happens after expiry.

I designed a notification card for checking conversation status outside the app. The “32 seconds ago” label shows elapsed time. A Live Activity showing time remaining was a separate concept and is not represented in this mockup.

03 / THE WORK
Select a screen to enlarge it. Captions identify the design or implementation stage.
04 / OUTCOME & REFLECTION
I created conversation screens with voice messages, characters and notifications, and explored time limits and Live Activity as further directions. These are design artifacts; user reactions and changes in response time have not been confirmed.
A mobile work-tool design bringing schedules, notices and colleague communication together for railway field workers.