Native iPhone app · live on the App Store
Sofi
An AI assistant that remembers what you tell it, talks back, and does real things on your phone.
About
I'm Julian.I build apps and software.
I'm Julian Rua, a systems engineer who builds apps, websites and backends.
Julian Rua
Systems engineer · iOS developer
Founder of AI Apps NJ
I currently work full time as an iOS developer for a software company. Before that I worked at MOBILCASH, Areamovil, Nexos and Renault Sofasa.
On my own, I published two apps on the App Store, Sofi (an AI assistant) and Luka (automatic expense tracking), and built Polo, a marketplace with a web app, iPhone app, Android app and its own API. I also build the websites for my own businesses, like Drone Medellín.
AI Apps NJ is for businesses that want their own app or a website that sells, with clear prices and someone who speaks their language.
What I've built.
My own projects, live and in use.
Web platform + iOS app + Android app + API
Polo App
A marketplace to book boarding, walks, grooming and vet care for pets.
Bilingual website with SkyScore and live weather
Drone Medellín
My aerial video business: I needed to quote over WhatsApp and tell clients whether the weather allows flying.
What I work with.
The same tools I use every day at my job and in my own products.
- iOS
- Swift
- SwiftUI
- WidgetKit
- CarPlay
- App Intents
- Android
- Kotlin
- Jetpack Compose
- Web
- Astro
- Next.js
- React
- TypeScript
- Backend
- C# / .NET
- Python / FastAPI
- PostgreSQL
- Supabase
- Azure
- AI
- OpenAI
- Gemini
- Claude
- MCP
Let's talk aboutyour project.
My other business, Drone Medellín, is rated 5.0 with 43 Google reviews. See Google reviews