You will get Android Development with Koltin and Java.
Top Rated
Project details
You will get top-quality work and services with on-time delivery. As I am an Expert Mobile Developer having more than seven years of experience.
What will be provided:
- Clean code architecture
- Latest version of Koltin development
- Responsive designs
- Git version setup
- Google play upload
What will be provided:
- Clean code architecture
- Latest version of Koltin development
- Responsive designs
- Git version setup
- Google play upload
Platform
AndroidApp Type
Native AppDevelopment Technology
Java, KotlinApp Purpose
Entertainment, Gaming, Health & Fitness, Kids, Lifestyle, Medical, Music, Restaurant, Streaming, TravelExpertise
Design, Localization, Performance OptimizationWhat's included $150
These options are included with the project scope.
$150
- Delivery Time 3 days
- Number of Revisions 1
- Number of Mobile Operating Systems 1
- App Store Upload
- Splash Screen
- Source Code
Optional add-ons
You can add these on the next page.
Fast 1 Day Delivery
+$300
Additional Revision
+$30
Additional Mobile Operating System
(+ 2 Days)
+$150
72 reviews
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TT
Tia T.
Apr 9, 2026
Urgent Hiring: 3 years+ experience React Native Engineer (Immediate Start)
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Robert P.
Mar 6, 2026
SDK Expert for Flutter and React Native
Great React Native and Flutter developer has incredible skills. Recommend him highly!
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Umar A.
Dec 22, 2025
Software modification Android /iPhone and Admin backend/front end
We engaged Avtar to maintain and stabilize our React application during a period of frequent bugs and urgent upgrade requirements. He delivered an exceptional level of service and resolved critical issues within a very short timeframe, even under tight deadlines.
His technical expertise, responsiveness, and problem-solving skills stood out throughout the engagement. Beyond maintenance, we trusted him with several additional projects, all of which were delivered efficiently and to a high
His technical expertise, responsiveness, and problem-solving skills stood out throughout the engagement. Beyond maintenance, we trusted him with several additional projects, all of which were delivered efficiently and to a high
FA
Fernando A.
Dec 2, 2025
Flutter Developer Needed for UI/UX Enhancement
Avtar Singh is a very hard-working, professional, and honest person. I am very happy with his work, and when I have similar needs, I will definitely contact him again for future jobs. I have worked with other people before on similar jobs, and so far, he is the one I have been most satisfied with in all aspects of the work.
NB
Nandila B.
Nov 27, 2025
Native Android App Development with Kotlin
Working with Avtar was an excellent experience from start to finish. He delivered high-quality results, communicated clearly throughout the entire project, and consistently went above and beyond to ensure everything worked perfectly. The Android app was delivered on time, met all requirements, and even included thoughtful improvements I hadn’t considered. His technical skills, professionalism, and attention to detail truly stood out. I would highly recommend him to anyone looking for a reliable and talented Android developer, and I look forward to working with him again on future projects.
About Avtar
Full Stack Developer React Native Flutter Swift Kotlin NodeJS
100%
Job Success
Sangrur, India - 8:09 pm local time
I am a Senior Full-Stack Developer with 10 + years of experience building high-quality, scalable, and pixel-perfect applications using React Native, Flutter, Swift, Kotlin, NodeJS, Express, NestJS, React, and Vue.js. -- specialize in cross-platform mobile apps, native iOS/Android apps, backend APIs, BLE integrations, real-time systems, mapping, GPS, IoT, and end-to-end product development.
If you need a fast, reliable, and experienced developer who can take your idea to production-level quality, I can help. Let’s bring your app idea to life with AI-driven innovation, seamless UX/UI design, and robust scalable architecture.
Senior Mobile App Development | Web Development | iOS Android | Flutter RN | React Native | SDK Web dev | Kotlin | Swift | SwiftUI | JetCompose
⭐ Why Clients Hire Me⭐
✔ 10+ years of experience
✔ End-to-end process: Idea → MVP → Launch → Scaling
✔ Clean, maintainable code (SOLID, MVVM, best practices)
✔ Expertise in AI integrations for smarter user experiences
✔ Full transparency, agile workflow, and long-term partnership
✔ Flexible engagement: fixed-price or hourly
✔️ Fast and scalable delivery
✔️ Clear communication & fluent English
✔️ Clean, well-documented code
✔️ Budget-friendly without sacrificing quality
✔️ Self-managed and deadline-driven
✔ Pixel-perfect UI from Figma
✔ Bug-free, scalable, clean code architecture
✔ Expertise in native (Swift/Kotlin) + cross-platform (React Native/Flutter)
✔ Strong backend experience with Node.js & NestJS
✔ API design, integrations & automation
✔ Performance optimization & code refactoring
✔ OTA updates, CI/CD, deployment (App Store & Play Store)
🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 I Work With
🚀 Mobile App Development
- React Native, Expo, React Navigation
- Flutter, Dart
- Swift, SwiftUI, UIKit
- Kotlin, Jetpack Compose
🚀 Backend & Full-Stack
- Node.js, Express.js, NestJS
- MongoDB, Firestore
- Firebase Authentication / Firestore / FCM
- REST APIs, Realtime DB, Cloud Functions
- CI/CD pipelines (Fastlane, GitHub Actions)
🚀 Advanced Integrations
- Google Maps, GPS tracking, Geofencing
- Bluetooth & BLE (IoT apps)
- Payment gateway integration
- WebSockets & real-time messaging
- Push notifications
- Deep linking
- Third-party API integration
- APIs: REST, GraphQL
- AI Tools: OpenAI (GPT), TensorFlow, Computer Vision, Google Gemini, Deepseek
🧩 Industries & Projects I Have Built
I have successfully delivered apps in multiple domains:
🎟 Event & Ticket Booking Apps
🍔 Food Delivery & On-Demand Apps
🚖 Taxi Booking & Ride Sharing Apps
🏏⚽ Sports Apps (Cricket & Football)
💇♀️ Beauty Service Apps
💬 Real-Time Chat & Video Calling & Social Apps
💘 Dating Applications
🎮 2D Games
📍 GPS & Location Tracking Systems
📡 IoT & BLE-based Apps
🎁 Loyalty Points & Rewards Apps & Coupon Apps
📱 MVP App Development for Startups
💪 Health, Fitness & Meditation Apps
✈️ Travel & Ticket Booking Apps
🗂️ Productivity & Task Management Apps
My experience helps me understand both product and technical requirements, ensuring smooth delivery and long-term maintainability.
⭐ Let’s Build Something Great
If you need a senior, reliable, and long-term developer who can ship high-quality products, feel free to message me.
I’m available for new projects, long-term cooperation, or part-time support.
📞 Schedule a free consultation — click Invite or Message to get started.
Thank you,
Avtar Singh
Mobile App Development, Flutter App Development, Cross-Platform Mobile App Development, Hybrid App Development, Mobile App Design, Android App Development, iOS App Development, Real Estate App Development, Food Delivery App Development, Dating App Development, AI Mobile App Development, Full Stack Mobile App Development, Mobile App Consultation, Mobile App Development Specialist, Native (iOS & Android) Developer, AI Mobile App Expert, Full Stack Developer
Steps for completing your project
After purchasing the project, send requirements so Avtar can start the project.
Delivery time starts when Avtar receives requirements from you.
Avtar works on your project following the steps below.
Revisions may occur after the delivery date.
Review of work using debug app.
I will share the apk file which you can install on your real mobile to review the work and can share your thoughts.