lume Mobile App

Overview

Lume is a meeting scheduling app designed for remote teams working across multiple time zones. Built as an end-to-end academic project, Lume automatically finds the best meeting time for everyone involved — by reading each participant’s calendar and local time zone and doing the math so nobody has to. The goal was to eliminate the back-and-forth and make cross-timezone collaboration feel effortless.

The Challenge

Scheduling a meeting across time zones sounds simple. In practice, it’s a mess.

The problem wasn’t that people couldn’t schedule meetings. It was that the process required too much mental work for something that should happen automatically.

My Approach

I treated this as a full UX process from research to final design — not just a screen-making exercise.

01. User Research & Information Architecture

I ran card sorting sessions to understand how users naturally think about scheduling and availability, and a tree test to validate the navigation structure before building anything. The goal was to make sure the app’s logic matched users’ mental models from the start.

02. Brand & Visual Identity

I built Lume’s visual identity from scratch — name, logo, color system, and typography — designed to feel calm and reliable. Scheduling tools should reduce stress, not add to it, and the visual language reflects that.

03. App Design

Every screen was designed around one principle: the app should do the thinking, not the user. Lume automatically surfaces the best available time slots based on everyone’s calendar and time zone — no manual input, no back-and-forth. The flow covers onboarding, calendar connection, meeting creation, and confirmation.

04. Testing & Iteration

I tested the complete scheduling flow with real users, validated the navigation through tree testing, and iterated based on where people got confused or slowed down. The final design reflects those findings — not just the first instinct.

The Results

End-to-End App Design

Every screen designed, from onboarding to meeting confirmation

Research-Backed Structure

Navigation and IA validated through card sorting and tree testing before design began

Automatic Time Zone Logic

Core feature designed to surface the best meeting time without any manual calculation from the user

Complete Brand Identity

Logo, color system, and visual language built from zero to support the product's tone

What Made This Work

Most scheduling tools give you the information and make you figure out the rest. Lume flips that — it figures out the rest and just tells you. The entire design process was built around removing steps, not adding features. From research to final screens, every decision came back to one question: does this make scheduling feel easier, or does it add another thing to think about?

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