Dual-Platform Mobile App UI/UX

Our product is still at the idea stage, so every screen, flow, and interaction for both iOS and Android needs to start from a blank canvas. I will share the concept, target users, and a few brand guidelines; from there I need a designer who can translate rough notes and sketches into a complete, modern mobile experience. The first milestone will cover user-flow diagrams and low-fidelity wireframes so we can quickly agree on structure. Once approved, I’ll expect polished, high-fidelity mock-ups, a lightweight design system (colour, typography, iconography), and clickable prototypes that I can run on TestFlight and Android emulators to demo to stakeholders. Design decisions should respect Apple’s Human Interface Guidelines and Google’s Material 3 while still feeling like one coherent product. You are free to work in Figma, Sketch, or Adobe XD as long as hand-off files are organised, component-based, and easy for developers to export. Please include: • Source files and prototypes • A short style guide with reusable components • Assets optimised for multiple resolutions If you’ve shipped dual-platform apps before and can show work where consistency across iOS and Android was critical, I’d love to review it.