I will design and develop your mobile app UI UX for ios and android

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kate_mala
Katerina M

About this gig

Stop wasting time on mockups that never get built. I deliver production-ready mobile apps from the first wireframe to the App Store and Google Play.

Im a full-cycle mobile developer who combines UX strategy with clean, scalable code. Every app I build is tested on real devices, optimised for performance, and designed to retain users. Whether you need an MVP to validate your idea or a complex B2C application, I handle the entire lifecycle.

My turnkey process includes:

UX research & user flow mapping

High-fidelity UI design (Figma) adapted to iOS (HIG) and Android (Material)

Cross-platform development (React Native / Flutter) write once, run on both stores

Backend integration (Firebase, REST APIs, Node.js)

Payment gateways (Stripe, PayPal, Apple Pay)

Push notifications, geolocation, camera, biometrics all native features

Rigorous QA testing on physical devices

Deployment to Apple App Store and Google Play Console

30-day bug-fixing warranty after launch

What you get in every package:

A fully working, installable app (.ipa / .apk or TestFlight / Play Console link)

Full source code (private GitHub repo)

Admin panel or CMS if your app needs content management


Get to know Katerina M

Katerina M
5.0(3)
  • FromMoldova
  • Member sinceJun 2024
  • Avg. response time1 hour
  • Last delivery7 months
  • Languages

    English, Russian, Ukrainian
I help businesses improve their websites and mobile apps by finding bugs, UX issues, and hidden problems that affect user experience and sales. With experience in manual QA, e-commerce content, and usability testing, I don’t just report bugs - I explain how they impact real users. What I do: Website & mobile app testing (Android, real devices, emulators) UX & conversion audits E-commerce testing (product pages, checkout, flows) Bug reports with clear steps, screenshots, and priorities My goal is simple: help you launch a stable product, improve user experience, and avoid losing customers

My Portfolio