One Drop
Blood Glucose Management App
A mobile healthcare app that helps users manage blood glucose-related routines with clearer guidance.
One Drop was designed for users across all age groups, including older adults who need simple navigation and easy-to-understand instructions.
The project also included custom cartridge usage illustrations to support in-app guidance.
Duration
January 2021 ~ June 2021
Role
Product Designer
(UX Architecture, Terminology Design, UI Design)
Contribution
Designed mobile app screens for a blood glucose management service.
Structured key flows for daily glucose management and device-related guidance.
Improved readability and navigation for users across different age groups.
Created instructional illustrations to explain cartridge usage step by step.
Designed visual assets for onboarding and in-app usage guidance.
Overview
One Drop is a blood glucose management app for users who need ongoing health tracking and guidance.
The service targets a wide age range, including older adults who may require simpler interactions. The design focused on readable UI, clear task flows, and visual guidance for cartridge usage.
Problem
Blood glucose management can feel complex when users need to understand health information, app tasks, and device usage at the same time.
For older users, unclear steps or text-heavy screens can make the experience harder to follow.
Health information needed to be readable and easy to scan.
Cartridge usage required clear step-by-step guidance.
The app needed to support users with different levels of digital familiarity.
Visual instructions were needed to reduce reliance on text.
The core challenge
Making blood glucose management and cartridge usage easier to understand for users of all ages.
Goal
Help users manage blood glucose-related tasks with clarity and confidence.
Design-wise, the goal was to create an accessible app experience supported by simple flows, readable UI, and instructional illustrations.
UX Review & Design Considerations
I reviewed the app structure, key screens, and device guidance flow from a UX perspective.
The review focused on how users understand health information, complete management tasks, and follow cartridge instructions.
The core challenge
Readability of key health information
Simplicity of navigation for older users
Clarity of cartridge usage steps
Visual guidance for device-related actions
Key direction
Make One Drop feel accessible, reassuring, and easy to follow in everyday blood glucose management.
Design Strategy
The strategy was to reduce complexity by making each task clear, sequential, and visually supported.
The app connected glucose management, device guidance, and instructional illustration into one easy-to-follow experience.
Design Principles
01
Prioritize readability
Use clear hierarchy, legible text, and simple layouts.
02
Guide users step by step
Break device-related actions into clear, manageable stages.
03
Use illustration as functional guidance
Use visuals to help users understand cartridge usage without relying only on text.
Light Mode
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Measure
Sleep
Activity
Medi
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