Background
OnCare SMDx is a physician-focused mobile tool designed to support the early identification of Systemic Mastocytosis, a rare and often difficult condition to diagnose.
The app needed to work within real clinical constraints: limited time, high cognitive load, and strict privacy expectations. The goal was to deliver a focused diagnostic aid that clinicians could use quickly, confidently, and without friction.
Challenge
• Original flow had unnecessary screens or buried instructions slowing down patient assessments.
• Lower barrier to entry and everyday usage by minimizing onboarding and/or eliminating form complexity.
• Lower barrier to entry and everyday usage by minimizing onboarding and/or eliminating form complexity.
With the first version of SMDx, the challenge was to restrain the feature set to only what drives diagnostic confidence, keeping everything else minimal.
Role
• UX / UI Lead — shaping the entire interaction and visual language, simplifying a clinical process into a one-screen flow
• Project management — bridging client needs and developer implementation
• Security-first thinking — ensuring that minimal, session-only data handling upheld privacy constraints
• Project management — bridging client needs and developer implementation
• Security-first thinking — ensuring that minimal, session-only data handling upheld privacy constraints
Approach
Every decision favored focus, efficiency, and trust.
• Users land on a concise explanation of SMDx with clear instructions—no onboarding, no setup.
• An intuitive, single-screen evaluation UI design eliminated context switching.
• A privacy-first priority meant no account creation requirement.
• Users land on a concise explanation of SMDx with clear instructions—no onboarding, no setup.
• An intuitive, single-screen evaluation UI design eliminated context switching.
• A privacy-first priority meant no account creation requirement.
Outcome
The final app feels light, direct, and reliable — matching the expectations of medical users who need answers quickly, without distractions. While the project ultimately didn't launch, the work resulted in a complete and well-considered foundation that the team could build on with confidence.
• A single streamlined workflow for rapid assessment
• Real-time diagnostic feedback that clinicians can trust
• Built-in export/sharing that fits into clinical documentation habits
• Privacy by design with zero account overhead
• Real-time diagnostic feedback that clinicians can trust
• Built-in export/sharing that fits into clinical documentation habits
• Privacy by design with zero account overhead
All of this came together without burdening users with unnecessary structure.
Left: First-time launch screen. Middle: Clinic ID prompt. Right: Resulting customized partnership logo splash screen.
Left: Start screen with definition and app instructions. Right: Menu sheet function from ellipsis.
Left: Main screen selections. Middle: Entry with real-time feedback gauge at top. Right: Diagnostic Summary with Share function.
Interested in diagnostic UX that respects both speed and precision?