Wedding × LINE Interaction: AI Photo Wall + Millisecond Buzzer, Zero App Download

Digitalent designed a "zero-app-download" LINE interaction mode for weddings. Couples, bridesmaids and groomsmen, both sets of parents, and distant relatives all participate using only LINE — no app installation, no account creation, no passwords. Scan one QR code and start.

Why weddings need zero-friction interaction

Wedding guests are a mixed cohort: young friends comfortable with any tool, parents and elders unfamiliar with new apps, and small children without their own app accounts. Activities that require "download the app first" instantly lose half the audience. LINE is already installed on roughly 99% of phones in Taiwan — building the interaction in LINE drops the entry bar to zero.

Three interactive modules

• AI Photo Wall: guests upload photos to the LINE Bot; AI auto-filters inappropriate content and projects acceptable ones to the wedding venue's big screen, turning guests into co-creators
• Spot-the-difference: played directly inside the LINE chat window. Easy for elders and kids. Puzzles customizable from couple photos, engagement shots, or proposal scenes
• Millisecond buzzer: big-screen question, phone-side options. The system records who pressed first, response time, and accuracy — leaderboard updates live

Technical core

The Digitalent LINE interaction engine integrates the LINE Messaging API, AI content moderation (image detection), millisecond-grade realtime messaging (WebSocket), and the on-site big-screen projection system. The full service — planning, theme customization, on-site setup, and day-of execution support — is delivered end-to-end by Digitalent.

This case applies to weddings, engagement parties, family gatherings, and corporate year-end parties — any event requiring all-ages participation. See the Events page for more interaction solutions.