I will do flutter developer, ai app developer, mobile app development, ios and android

T
theo_chriss
T
theo_chriss
Theo

About this gig

I develop cross-platform apps using Flutter, from a single codebase, without cutting corners on speed or reliability. If you've been burned before by an app that felt slow or "not quite native," that's exactly what I build to avoid.


I also specialize in something a lot of Flutter developers don't touch properly: real AI integration. Not a basic API call slapped onto a chat screen, but actual working intelligence with chatbots that reference your own data, recommendation systems, automated workflows, and custom NLP features built around what your app actually needs to do.

What You Get

Android and iOS builds from one Flutter codebase

Firebase backend setup (Auth, Firestore, Functions)

AI model fine-tuning for your specific use case

RAG based chatbot integration that pulls from your own documents or data

Custom NLP features

OpenAI, Gemini, and Claude API integration

n8n automation workflows to connect your app to other tools

App Store and Play Store deployment

Clean, documented code you can actually hand to another developer later

Tech Stack

Flutter & Dart · Firebase (Auth, Firestore, Functions) · Riverpod / Bloc · OpenAI, Gemini & Claude APIs · LangChain

Get to know Theo

Theo

High quality iOS, Flutter apps with Swift, SwiftUI and reliable backend

  • FromSpain
  • Member sinceApr 2026
  • Avg. response time1 hour
  • Languages

    English
As a mobile iOS developer with years of experience building scalable apps using Swift and SwiftUI. My focus is on clean architecture, modern UI design, solid API integration, and apps that are genuinely ready for the App Store not just functional, but polished enough to actually launch with confidence.i also work alongside a small team of Flutter developers and backend engineers, which means I'm not limited to iOS alone. we can take on the full picture: native iOS apps, Flutter apps for cross-platform reach, backend APIs, feature upgrades, bug fixes, UI/UX improvements.

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