Get your
mobile app built
I'm Andrii Karavan, a Flutter developer. I run my own products on Google Play and the App Store, and also build custom apps for clients: Dart, Node.js, Firebase, REST API, NFC, GPS, AWS IoT Core.
Experience you can rely on
14+ years in IT, with active Flutter development since 2021. Over the past 5 years I've worked with 6 companies, shipping apps to Google Play and the App Store.
Flutter & Dart
Mobile apps for Android and iOS from a single codebase — fast, reliable, and with a native feel.
Node.js backend
REST APIs, authentication, databases — a complete backend for your mobile or web app.
Firebase
Authentication, databases, analytics, push notifications, and hosting — end to end.
NFC, GPS, IoT
Integration with device hardware capabilities and AWS IoT Core for projects involving physical equipment.
Store submission
I'll take your app through the entire journey: from development to launch on Google Play and the App Store.
Ongoing support
My own products (Grain Calculator, MedVibe, SmartFuel) have run in production for years — I support client projects the same way.
What I work with
Published apps
My own products, plus projects built for a former employer — all available on Google Play and the App Store.
Grain Calculator
Grain price calculation
MedVibe
Medication management
SmartFuel
CRM for gas stations
BON.ua
Classified ads in Ukraine
OnSite Ops
Airport resource management
EN Expedite
Freight and dispatch management
BIOTUS
Vitamins & supplements
Ready to start a project?
Send me a short description of your idea — I'll reply within the day.