Mobile development
Native Android apps in Kotlin and Jetpack Compose, and cross-platform apps with Kotlin Multiplatform.
Software studio & academy
Turning ideas into powerful Web, Mobile, AI & 3D solutions
Jin.EX designs and builds apps people use every day, from Android and web to AI features and 3D. We also teach developers to build them at Jin.EX Academy.
- 10+years building Android apps
- 7products & apps live
- 60 hKotlin & Android course
- Kotlin
- Jetpack Compose
- Android
- Kotlin Multiplatform
- Python
- FastAPI
- OpenAI
- Claude
- Gemini
- RAG
- PostgreSQL
- Docker
- Cloud
- 3D modeling
- Game development
- Web apps
What we do
Services
One team for the whole product: app, backend, AI and visuals.
Web development
Fast, responsive websites and web apps that work on every screen.
Custom software
Tools built around how your business really works, from shop systems to internal dashboards.
AI integration & automation
AI assistants, tool calling, RAG over your documents, and on-device AI inside your apps.
API & cloud solutions
Secure backends and APIs (Python, Kotlin) deployed to the cloud with low running costs.
3D art & game development
3D modeling and rendering, interior and exterior visualization, game assets and full game development.
How we work
From idea to launch
- 01
Discover
We listen, ask the hard questions and agree on what success looks like.
- 02
Design
Clickable screens and a clear plan, so you see the product before we build it.
- 03
Build
Short cycles with working demos. Clean, tested code you can grow.
- 04
Launch & grow
We ship to the store or the web, measure, and keep improving with you.
Built by Jin.EX
Products
Products we design, build and run ourselves.
Apps on Google Play
Android apps and games we built and published.
Learn Kotlin, Android & AI from people who ship apps
Practical courses built on real products. Fundamentals first, then AI on top.
About Jin.EX
Fundamentals first, AI on top
Jin.EX is a software studio that builds web, mobile, AI and 3D products. We combine more than ten years of Android experience with modern backend and AI engineering, so one team can own a feature from the screen to the server.
We build our own products, like Shop Manager, and we share what we know through Jin.EX Academy. Our belief is simple: AI makes good developers faster, but only when they understand what the code does. That is how we build, and how we teach.
Contact
Have an idea? Let's build it.
Tell us about your project, ask for a Shop Manager demo, or ask about the next Academy group. We usually reply within one working day.