Service App Design — From Idea to Interaction

Pro

Sofiia Tatara

Starting at

/hr

About this service

Summary

I design intuitive, engaging mobile app experiences that balance beauty with usability. Using Figma, I deliver end-to-end design solutions — from UX strategy to interactive prototypes — helping startups and creative teams bring their digital ideas to life with clarity and impact.

Process

Discovery & Research I begin by understanding the client’s goals, audience, and brand. Through workshops, interviews, and competitor research, I identify user needs and define the app’s core value proposition.

UX Strategy & Information Architecture I map user journeys, create personas, and structure the app’s flow to ensure an intuitive experience. This step lays the foundation for usability and content clarity.

Wireframing & Low-Fidelity Prototyping I translate strategy into structure — sketching layouts and key screens in Figma to visualize navigation and user interactions before visual design begins.

UI Design & Visual Language Once the flow is solid, I craft high-fidelity designs that express the brand’s personality. I focus on accessibility, consistency, and delight through thoughtful color, typography, and layout.

Design System Creation I build a scalable design system in Figma with reusable components, shared styles, and documentation — making future updates faster and more consistent.

Interactive Prototyping & Testing I develop clickable prototypes to simulate real interactions and test with users or stakeholders, refining based on feedback and usability insights.

Developer Handoff & Support I deliver organized Figma files with detailed specs and exportable assets. I also collaborate with developers to ensure the final product matches the design vision seamlessly.

FAQs

What do you need from me to get started?
I’ll need a brief overview of your project — including goals, target audience, preferred features, and any existing branding or assets. We’ll start with a quick discovery call to align on vision and scope.
How long does a typical mobile app design project take?
It depends on the scope and complexity, but most projects take 4–8 weeks from discovery to final handoff. I provide a clear timeline at the start and keep you updated through every phase.
Do you only work in Figma?
Yes — Figma is my primary design tool for UX/UI, prototyping, and design systems. It allows for real-time collaboration, smooth feedback, and easy developer handoff.
Can you also design for web or tablet?
Absolutely. While I specialize in mobile-first design, I often extend projects to include responsive web and tablet experiences for a consistent cross-platform journey.
Will I receive the source files?
Yes. You’ll receive the complete Figma project file, including all screens, components, styles, and documentation. Everything will be organized and ready for your development team.

What's included

UX Strategy & Wireframes
1)Defined user flows, information architecture, and wireframes to clarify key touchpoints and service interactions. 2)Ensured a seamless end-to-end journey tailored to client goals and user needs.
UI Design & Design System
1)Crafted high-fidelity, mobile-first screens with a cohesive visual identity and accessible color palette. 2)Built a reusable Figma design system for scalability and consistency across the app.
Interactive Prototype & Handoff
1)Developed clickable prototypes showcasing real user scenarios and microinteractions. 2)Delivered organized Figma components and documentation for smooth developer handoff.

Example projects

Altus App UX/UI Redesign

Self-Reflection App Design

Budget mobile app | UX/UI Design

Recommendations

(4.8)

Yvette Lavedette • SHE Thinks Group

Client • Nov 3, 2025

Recommended

Working with Sofiia was a pleasure. She brought a solid process and willingness to understand my brand and vision. Thoughtful, flexible, and solutions-oriented throughout, she made the final product feel like my company. Highly recommend!

Rakesh Suthar • Rexivor

Client • May 12, 2025

Recommended

Sofiia is an incredible designer! She worked on our Rexivor website for 2 months, set a clear timeline, and delivered everything on time. What truly stands out is her flexibility and dedication. She was always responsive and quick to address any questions or feedback we had. Sofiia takes full ownership of her work and ensures that everything is completed within the agreed timeframe. As the Founder of Rexivor, I highly recommend Sofiia. She’s reliable, talented, and a pleasure to work with.