You will get Android & iOS Mobile App Development Using Flutter || Firebase || API Int
Top Rated
Project details
I'm a mobile app developer publishing on iOS, Android, Flutter, and React Native. I specialize in creating easy-to-use, innovative, and intuitive applications in multiple programming languages. My focus is on the cutting edge of mobile technology trends. I specialize in turning creative ideas into action by using experience, with an emphasis on application development. My commitment is to deliver compelling solutions across multiple platforms.
Skills include:
Cross-platform development for Android and iOS
Use Redux/Context API for state management
Use Redux/Context API for backend development Node/ExpressJs Leverage Google Firebase for powerful work
Develop custom mobile app solutions
Build hybrid and native apps for Android and iOS
Expertise in React Native, React Hooks, and more
> Creating artificial intelligence applications
>Integrating ChatGPT and other chat robots
Utilizing OpenAI technology
Mobile Application Development Area of Expertise:
Doctor Appointment Booking Applications
Event Reservation and Electronic Business Mobile Applications
Fitness and Sports Mobile Applications
Food, Taxi, Alcohol, Medicine, Pizza and Food Delivery Applications
Skills include:
Cross-platform development for Android and iOS
Use Redux/Context API for state management
Use Redux/Context API for backend development Node/ExpressJs Leverage Google Firebase for powerful work
Develop custom mobile app solutions
Build hybrid and native apps for Android and iOS
Expertise in React Native, React Hooks, and more
> Creating artificial intelligence applications
>Integrating ChatGPT and other chat robots
Utilizing OpenAI technology
Mobile Application Development Area of Expertise:
Doctor Appointment Booking Applications
Event Reservation and Electronic Business Mobile Applications
Fitness and Sports Mobile Applications
Food, Taxi, Alcohol, Medicine, Pizza and Food Delivery Applications
Platform
iOSApp Type
Hybrid AppDevelopment Technology
Flutter, React Native, NativeScriptApp Purpose
Delivery, Education, Health & Fitness, Kids, Maps & Navigation, Medical, News, Restaurant, Shopping, TravelExpertise
Design, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$300
|
Standard
$600
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 6 days | 15 days | 25 days |
Number of Revisions | 5 | 7 | 9 |
App Store Upload | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$100 - $500
148 reviews
(142)
(3)
(0)
(0)
(3)
NB
Nai B.
Nov 26, 2024
Freelancer is unable to communicate clearly in English and repeatedly demands calls "to understand" after agreeing to the contract. He did not follow the arbitration resolution; and has not delivered an appropriate product claiming the requirements changed (actually, he could not understand the requirements). I would give a score of zero if possible.
ND
Naveed D.
Jul 18, 2026
Flutter developer to make modifications to script that was purchased
Usama delivered what was expected in timely manner.
CB
Chuks B.
Jun 29, 2026
Flutter Developer – Deep Linking
Usama Mukhtair delivered outstanding work on our Flutter app's deep linking and referral system. He successfully resolved iOS App Store redirects, Android Install Referrer integration, splash/loading issues, and implemented seamless auto sign-up with referral codes. His expertise across both Flutter and backend development was evident throughout the project. Fast delivery, excellent communication, and high-quality code—I highly recommend Usama Mukhtair for any mobile or full-stack development project.
SG
Simon G.
Jun 22, 2026
30 minute consultation
MA
Mohammad A.
Jun 17, 2026
Development of a Hajj App and website
We kept Usama on because he gets how a live app actually runs
Once Hajj Companion was out in the field, things didn’t stop—we had new ideas, small bugs, and “can we do this before tomorrow?” moments. Usama Mukhtiar stayed easy to work with through all of it. No long lectures, no disappearing after handoff. He’d listen, say what was realistic, do the work, and tell us when to test or when we needed a new build.
What I appreciate most is that he doesn’t overpromise. If something needed more time, he said so upfront. If it was a quick win, he turned it around fast. That’s rare, and it made the second phase of the project feel steady instead of stressful.
If you’re past “v1” and need someone who can support a real product month to month—not just build and vanish—I’d happily recommend Usama again.
Once Hajj Companion was out in the field, things didn’t stop—we had new ideas, small bugs, and “can we do this before tomorrow?” moments. Usama Mukhtiar stayed easy to work with through all of it. No long lectures, no disappearing after handoff. He’d listen, say what was realistic, do the work, and tell us when to test or when we needed a new build.
What I appreciate most is that he doesn’t overpromise. If something needed more time, he said so upfront. If it was a quick win, he turned it around fast. That’s rare, and it made the second phase of the project feel steady instead of stressful.
If you’re past “v1” and need someone who can support a real product month to month—not just build and vanish—I’d happily recommend Usama again.
FZ
Feng Z.
Jun 17, 2026
Collect Reviews of iOS and Android Apps
Great job!
About Usama
Top Rated Flutter & Node.js Developer | Mobile Apps for Startups
100%
Job Success
Bahawalnagar, Pakistan - 6:56 am local time
Over the past 5+ years, I've completed 212+ projects, earned over $100K on Upwork, and maintained a 100% Job Success Score while helping startups launch and scale successful mobile products.
Recent work includes the CeBee prediction platform with deep linking and referral systems, the Hajj Companion app used during pilgrimage by real users, and multiple marketplace and POS platforms designed for real businesses.
Whether you're building a new product or improving an existing app, I can help with:
▪ Flutter mobile apps for iOS & Android
▪ Node.js backend development
▪ Firebase, Supabase & REST API integration
▪ AI-powered features using OpenAI
▪ Payment integration (Stripe, Apple IAP & Google Play Billing)
▪ Marketplace, SaaS, and booking platforms
▪ App Store & Google Play deployment
▪ Long-term retainer support and post-launch iteration
I've shipped products across healthcare, fintech, e-commerce, logistics, POS systems, booking platforms, and AI applications—working with startups and established businesses worldwide.
What you can expect:
✔ Clean, scalable architecture built for long-term growth
✔ Fast and transparent communication throughout the project
✔ Production-ready code that survives real users
✔ Full ownership from planning to launch
✔ A long-term technical partner, not just a task-taker
Tech Stack:
Flutter • FlutterFlow • Dart • Node.js • Express.js • Firebase • Supabase • MongoDB • REST APIs • GraphQL • Stripe • OpenAI • Google Maps • Push Notifications • Git • CI/CD
My goal isn't just to write code. My goal is to help you ship a product that's reliable, scalable, and ready for real users.
Not sure where to start? I offer a paid consultation where we review your idea, choose the right tech stack, and plan your MVP before any code is written.
Ready to build something real? Send me a message and let's talk about your project.
Steps for completing your project
After purchasing the project, send requirements so Usama can start the project.
Delivery time starts when Usama receives requirements from you.
Usama works on your project following the steps below.
Revisions may occur after the delivery date.
A clear description of the app idea, purpose, and core functionalities.