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Devin Sanders Mark Index
UI/UX & Interactive Systems

Raw ideas to working interfaces.

Exploring user habits, multi-device ecosystems, and scalable interaction design across responsive web and mobile platforms.

iOS Ecosystem Interface
01 // ECOSYSTEM ARCHITECTURE 2026

Unified Habit Architecture — Cross-Device Flow & Task States

Deep multi-device task synchronization connecting Reminders, Lock Screen widgets, and Focus sessions into a frictionless habit loop.

Case Study
Wise Banking Dashboard Laptop
02 // FINTECH PLATFORM 2025

Fintech at Scale — Multi-Rail Account Architecture

Expanding Wise from single-action currency transfers into an integrated financial dashboard with multi-currency accounts and card rails.

Case Study Desktop Prototype Mobile Prototype
KalorieTrak Mobile Interface
03 // HEALTH & UTILITY 2025

Glanceable Nutrition — Zero-Friction Daily Logging

A high-efficiency mobile tracking system designed around glanceable nutritional timelines and reduced input fatigue.

Case Study Interactive Prototype
Micro-Interactions & Interaction Labs
Smart Home Screen UI
LAB.01 // IOT INTERACTION

Smart Home Screen

A balanced smart home interface optimizing glanceable room controls, card elevation, and ambient toggles.

Test Prototype
One Tap Purchase Screen
LAB.02 // CHECKOUT FUNNEL

One Tap Purchase

A single-surface checkout interaction designed to eliminate multi-step cart friction and drop-off.

Test Prototype
Onboarding Mobile Screen
LAB.03 // RETENTION FUNNEL

Onboarding Screen

A progressive setup flow engineered to guide first-time mobile users through system permissions.

Test Prototype