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$
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I will develop custom ios android react native flutter ai mobile app or mvp for startup
Harinder
Level 2
4.9
4.9
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About this gig
Need a React Native or Flutter Developer to Build a High-Performance Mobile App?
I'm a Full-Stack Mobile App Developer with 7+ years of experience, specializing in React Native, Flutter, AI-powered mobile apps, Startup MVPs, and SaaS applications. I help startups and businesses transform ideas into scalable, secure, and production-ready mobile applications with modern UI/UX and reliable backend architecture.
I provide E2E Business Solution from discussing your App Idea to Launching iOS/Android apps on stores
What I Offer
- Custom Android & iOS App Development
- Startup MVP Development
- AI-Powered Mobile Applications
- SaaS Mobile Apps
- Modern UI/UX Implementation
- Backend & Admin Panel Development
- API & Third-Party Integrations
- Secure Authentication & Payment Gateway
- App Testing, Optimization & Deployment
Tech Stack
React Native Flutter Node.js Firebase AWS PostgreSQL MongoDB OpenAI LangChain
Why Choose Me?
- 7+ Years of Experience
- Clean, Scalable & Maintainable Code
- Fast Communication & On-Time Delivery
- Production-Ready Solutions
- Post-Launch Support
Message me before placing your order to discuss your app idea and choose the best solution for your business.
Get to know Harinder
Harinder
Engineering industry leading mobile apps, web apps and AI Solutions
Level 2
- FromIndia
- Member sinceJul 2020
- Avg. response time1 hour
- Last delivery5 days
Languages
Hindi, English
Over the past 7+ years, I’ve helped startups build custom mobile app and backend system architecture solutions featured on TechCrunch, Google Play’s Top 10, and App Store’s “App of the Day.” My portfolio spans scalable e-commerce, SaaS, and marketplace applications, several surpassing 500K+ active users. My technical expertise includes Flutter, React Native, Node.js, Python, and enterprise LLM RAG pipelines. I engineer high-performance products from concept to live deployment with clean architecture built to scale. Let's connect on Fiverr chat to map out your technical roadmap!
My Portfolio
FAQ
Will you publish my app to the App Store and Play Store?
Yes, I’ll Submit your app to play store and app store.
Can you connect the app with my backend or APIs?
Absolutely! I can integrate REST or GraphQL APIs with Node.js, php laravel or Firebase, or third-party services.
Do you provide source code?
Yes, full source code and project files are included in all packages.
Can you design UI/UX for the app?
Yes, I can design modern, user-friendly screens using Figma or implement your design directly.
What if I need future updates?
I provide long-term support and can help add new features later at a discounted rate.
Reviews
14 reviews for this Gig
| (13) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jasminebirla
Repeat Client
India
Harinder has deep understanding of backend development and frontend development. He is expert at designing low cost and high performance backend system design architecture. I strongly recommend him for high traffic applications.
Up to $50
Price
1 day
Duration
Helpful?N 
neha2439
Repeat Client
India
Excellent developer! He delivered high-quality, clean code on time and understood the project requirements perfectly. Communication was proactive, clear, and professional throughout. I highly recommend him.
Up to $50
Price
1 day
Duration
Helpful?N neha2439
Repeat Client
India
He is very good at his work. Exceeded the expectations.
Up to $50
Price
1 day
Duration
H 
Seller's Response
Helpful?J jasminebirla
Repeat Client
India
Exceptional work done by Harinder Singh. Super professional and quickly responsive. Amazingly work done. 100% recommend him.
Up to $50
Price
2 days
Duration
H Seller's Response
Helpful?M mandy_kaur_pb
India
Harinder guided me for my business and provided me exceptional work delivery. He is always on time. quick responses. Strongly recommend him for everything related to App development and Web development.
Up to $50
Price
1 day
Duration
H Seller's Response
Helpful?
Reviews
14 reviews for this Gig
| (13) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jasminebirla
Repeat Client
India
Harinder has deep understanding of backend development and frontend development. He is expert at designing low cost and high performance backend system design architecture. I strongly recommend him for high traffic applications.
Up to $50
Price
1 day
Duration
Helpful?N neha2439
Repeat Client
India
Excellent developer! He delivered high-quality, clean code on time and understood the project requirements perfectly. Communication was proactive, clear, and professional throughout. I highly recommend him.
Up to $50
Price
1 day
Duration
Helpful?N neha2439
Repeat Client
India
He is very good at his work. Exceeded the expectations.
Up to $50
Price
1 day
Duration
H Seller's Response
Helpful?J jasminebirla
Repeat Client
India
Exceptional work done by Harinder Singh. Super professional and quickly responsive. Amazingly work done. 100% recommend him.
Up to $50
Price
2 days
Duration
H Seller's Response
Helpful?M mandy_kaur_pb
India
Harinder guided me for my business and provided me exceptional work delivery. He is always on time. quick responses. Strongly recommend him for everything related to App development and Web development.
Up to $50
Price
1 day
Duration
H Seller's Response
Helpful?
