WhatsApp Sign-Up
Coordinating without the chaos — a concept feature that brings lightweight task sign-ups into the group chat, so everyone can see who's bringing what without leaving WhatsApp.
Client.
Self-initiated · DesignLab UX Academy capstone
Tools.
Figma, pen & paper
Role.
UX/UI designer
Overview
Everyone's in the chat. Nobody knows who's bringing the orange slices. WhatsApp connects over 3 billion people — but the moment a group tries to organize something, the app that's so good at talking becomes surprisingly bad at coordinating. Snack duty for the game, the volunteer shifts, who's on drinks — it all dissolves into a scroll of half-answered messages until someone gives up and pastes a SignUpGenius link. The problem: messaging apps are built for conversation, not for tracking who committed to what. So I designed a way to close that gap — a lightweight Sign-Up that lives right inside the chat. The hard part wasn't the feature. It was earning a place in an app three billion people already know by heart, without adding a single thing that felt new. Here's how I got there. ↓
Validating the Problem.
I've felt this pain in my own group chats — but a hunch isn't a problem worth designing for. So I went looking. I interviewed people who coordinate in group chats constantly: sports-team parents, family planners, community organizers. And I audited the tools they escape to — SignUpGenius, Doodle, Google Forms — to understand why those tools lose them. The word chaos came up every time. Coordinating in chat starts fine and falls apart as the group grows. Commitments get buried in the scroll, people forget what they signed up for, and the same questions get asked twice. People weren't missing a tool — they had spreadsheets and SignUpGenius. The friction was leaving the chat to use them, away from where the planning was actually happening. The real gap was accountability and visibility — a way to see who committed to what, right where the conversation already lives. (WhatsApp's Polls capture preferences; no one had a way to capture commitment.)
The Challenge
The research handed me an opportunity and a trap. Users needed structure — a way to assign, claim, and see commitments at a glance. But they were also wary of complexity. This feature had to feel like it was always part of WhatsApp. Lightweight, familiar, frictionless — no new navigation, no new mental models, no reason to relearn anything. Three How Might We questions kept me honest: - How might we make responsibilities visible at a glance, without adding noise to the thread? - How might we move people from voting to committing? - How might we bring structure to big-group coordination without disrupting the conversation?