I designed and built this app end to end as a native Android product. It’s offline-first, so every feature works without a connection, and the balance always stays accurate even after edits and deletions. Users can log income and expenses, organize them with default and custom categories, and find anything quickly with date-range filters and search. Behind the clean UI is a tested architecture (Kotlin, Jetpack Compose, Room, Hilt, MVVM), with unit and instrumented tests covering the data layer and view models.
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This is a native Android app I built with Kotlin and Firebase. It connects tourists with verified local guides in real time. You open the app, see nearby guides, book a tour, and then you can track each other’s location live using Google Maps. I also added offline support because travel doesn’t always have perfect internet. Over 100 active users ended up using it,during the MVP. The best part? Battery usage was optimized so your phone doesn’t die halfway through the day. Really proud of how smooth it turned out.
For more details, please visit: https://arham-nexus.vercel.app/work/raaheraast
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Aura is a mobile voice assistant designed to let users control and interact with their Android device using voice commands. It focuses on functionality, quick responses, and device-level actions without relying entirely on cloud-based AI services
Improve your existing Android application with reliable bug fixes, performance optimization, and seamless feature integration. I help businesses and developers maintain, upgrade, and scale their Android apps using modern development practices and clean, maintainable code.
Services
🐞 Bug Fixing
Crash and ANR resolution
UI/UX issue fixes
Memory leak detection
Performance optimization
App stability improvements
Build and dependency issue fixes
🚀 Feature Development
Add new screens and functionality
Firebase integration
REST API integration
Push notifications
Authentication (Email, Google, Phone)
Payment gateway integration
AI features (ChatGPT & Gemini)
Camera, Maps, Location, and File Management
Dark Mode support
Offline functionality
⚙️ Code Improvements
Refactor legacy code
MVVM architecture implementation
Jetpack Compose migration
XML UI enhancements
Room Database optimization
Dependency updates
Code cleanup and documentation
Technologies
Kotlin
Java
Jetpack Compose
Android SDK
MVVM Architecture
Firebase
Room Database
Retrofit
REST APIs
Google Maps
CameraX
Google ML Kit
OpenAI & Gemini APIs
What You Can Expect
DocuMind AI is a modern Android application that transforms physical documents and PDFs into editable, searchable, and AI-powered insights. Built with Kotlin and Jetpack Compose, the app combines on-device OCR with AI summarization to help users digitize and understand documents in seconds.
Features
📄 Smart Document Scanning
Real-time document detection
Auto edge detection and perspective correction
Single and multi-page scanning
High-quality document capture
🔍 On-Device OCR
Fast and accurate text extraction
Works offline using Google ML Kit
Copy, edit, and save extracted text
Supports printed documents with excellent accuracy
🤖 AI Document Summarization
Generate concise summaries from lengthy documents
Extract key information instantly
Reduce reading time while preserving important details
Powered by modern Large Language Models (LLMs)
📁 Document Management
Save scanned documents locally
View scan history
Share extracted text and AI summaries
Clean and intuitive document organization
Tech Stack
Kotlin
Jetpack Compose
MVVM Architecture
Google ML Kit OCR
Gemini / OpenAI API
Android CameraX
Room Database
Material Design 3
Coroutines & Flow
Build intelligent Android applications with the latest AI technologies using Kotlin and Jetpack Compose. I develop modern, scalable, and high-performance Android apps that integrate advanced AI capabilities to deliver smarter user experiences.
What I can build
🤖 ChatGPT & Gemini AI integration
🧠 AI Chatbots and Virtual Assistants
📄 OCR (Optical Character Recognition)
📷 Image & Text Recognition using Google ML Kit
🔥 Firebase Authentication, Firestore & Cloud Functions
🌐 REST API integration
⚡ Clean MVVM architecture
🎨 Modern Jetpack Compose UI
🚀 Performance optimization and bug fixing
Technologies
Kotlin
Jetpack Compose
Android SDK
Firebase
Google ML Kit
OpenAI API (ChatGPT)
Google Gemini API
REST APIs
MVVM Architecture
Why work with me?
Clean, maintainable, and scalable code
Responsive and modern UI/UX
Efficient API integration
Performance-focused development
Clear communication and timely delivery
Ongoing support after project completion
Whether you need an AI assistant, document scanner, OCR solution, chatbot, or a custom AI-powered Android application, I can help turn your idea into a polished, production-ready app.