MarekK
From: Poland
Location: Libiąż
On Useme since 20 July 2025
About me
Portfolio: https://www.twincodecorp.com/ We are a team of experienced developers specializing in modern mobile applications (Flutter, React Native) and web solutions (React, Next.js, Vue.js, Node.js). We deliver complete projects – from concept and UI/UX design to backend, API integration, deployment, and maintenance.
Our key capabilities
- Cross-platform mobile apps (iOS/Android) using Flutter and React Native
- Responsive web applications (SPA, PWA) – React, Next.js, Vue.js
- Backend development – Node.js, Express, Firebase, Supabase
- Payment and authentication integrations (Google, Apple, Facebook)
- UX/UI Design (Figma, Adobe XD)
- Admin panels, dashboards, and CMS systems
- SEO, performance optimization, and security
We work efficiently, on time, and with clear communication – delivering fast MVPs and scalable solutions tailored to your needs.
Portfolio
Travel Balance is a handy app for managing expenses and planning trips — from weekend getaways to multi-country adventures. Stay on budget and keep everything organized.
Turn your phone into a smart guide with Guide AI: Landmark Scanner. Scan a landmark or artwork, and let AI instantly recognize it and share interesting facts.
Step into the wild with Nature Scanner: AI Identifier – your intelligent guide to the natural world. Whether you're exploring a forest, hiking through the mountains, relaxing in your garden, or spotting animals on a walk.
A website for a Doctor of Juridical Science, featuring editable content, news updates, and a contact form powered by a headless CMS.
Our app is the perfect tool for church organists, supporting regular practice. It allows users to rehearse mass responses in different keys, helping them quickly adapt to the sung melody.
Level up your programming skills with our powerful flashcard app, designed to make studying smarter, faster, and more efficient.
Discover details about any car by scanning its image. Recognize make, model, year, specs, and more using AI-powered detection.
Accelerate your Android app testing and deployment process with Twelve Testers. Designed for developers, it helps you meet Play Store testing requirements, gather real user feedback, and connect with a community of testers.