Shivam Kumar – Freelance Android Developer for Business Apps
I'm Shivam — freelance Android developer. I help businesses and entrepreneurs launch production-ready Android apps quickly using Kotlin, Jetpack, and Firebase.
Portfolio
Showcasing my recent projects and case studies
VoxAnalyzer — AI Voice Emotion Analyzer
Full-stack Android app for voice emotion analysis with secure Google Cloud Run deployment, Whisper speech-to-text, and transformer-based segment emotion detection.
NightLibrary — Secure Media Vault
Privacy-focused Android vault for sensitive media with offline-first Room persistence, background workers, and encryption-ready storage handling.
GeoFence Tracker — Child Safety
Android app with geofences, entry/exit detection, and persistent location history using Google Maps SDK and Room Database.
Services Offered
Comprehensive Android development solutions tailored to your needs
Custom Android App Development
Full-cycle Android app development using Kotlin and Firebase with fast UI and scalable backend.
Get a Quote →App Maintenance & Optimization
Improve app performance, fix bugs, and enhance user experience.
Upgrade My App →Firebase Integration
Set up Authentication, Firestore, Analytics, and Push Notifications.
Setup Firebase →UI/UX to App Conversion
Convert your design (Figma/Adobe XD) into a working Kotlin app.
Start My Project →Technologies I Work With
Cutting-edge tools and frameworks for modern Android development
Android Development
- Kotlin
- Java
- Jetpack Compose
- MVVM Architecture
- Room Database
- Jetpack Libraries
Backend & APIs
- Retrofit
- REST APIs
- Firebase Authentication
- Firestore / Realtime DB
- Cloud Messaging (FCM)
Tools & Technologies
- Android Studio
- Git & GitHub
- Postman
- Figma (UI/UX)
- Firebase Console
Testimonials
What my clients say about working with me
Frequently Asked
Short answers to help you decide faster.
How long does a typical app take?
An MVP typically takes 4–8 weeks depending on complexity. I provide timelines with every quote.
Do you provide ongoing maintenance?
Yes — bug fixes, Play Store updates, performance improvements & feature add-ons available by agreement.
How do you price projects?
I quote per project based on scope. Use the contact form to share requirements and I’ll return a clear estimate.
Do you sign NDAs?
Yes — I can sign NDAs and deliver private repositories on request.
Let's talk about your app
Quick answers and honest pricing. Tell me about your idea — I’ll reply in 24 hours.