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English
$
USD
I will develop native android and ios apps using kotlin and swift
Sanjay
4.9
4.9
About this gig
Looking for an experienced developer to build a fast, secure, and scalable native mobile application?
With 9+ years of mobile app development experience and 50+ apps delivered, I develop production-ready Android and iOS applications using Kotlin, Jetpack Compose, Swift, and SwiftUI.
I work with startups, businesses, and enterprises to build apps with excellent performance, modern UI, clean architecture, and reliable integrations.
What I Can Build
- Native Android and iOS applications
- Startup MVPs and business apps
- AI chatbots and AI assistants
- ChatGPT, Gemini and Claude integration
- Firebase and REST API integration
- Payment gateways and subscriptions
- Google Maps and location features
- Push notifications and authentication
- E-commerce, healthcare and fintech apps
- Bug fixing, upgrades and performance optimization
Why Choose Me?
- 9+ years of experience
- Kotlin, Jetpack Compose, Swift and SwiftUI
- Clean, scalable and maintainable code
- App Store and Play Store support
- Clear communication and post-launch assistance
Please contact me before ordering to discuss your requirements, timeline, and budget.
Get to know Sanjay
Sanjay
Building AI Powered Mobile Apps That Scale
- FromIndia
- Member sinceAug 2019
- Last delivery5 months
Languages
Gujarati, Hindi, English
I help startups and businesses transform ideas into high-quality mobile applications that are built to scale. As the Founder of SpyBird Infotech, I bring 9+ years of experience in Android, iOS, Flutter, and AI-powered application development. I've delivered 50+ successful projects, including products with 5M+ downloads, enterprise platforms, and AI-driven solutions. My goal is to deliver clean, scalable, and secure applications with outstanding performance, modern architecture, and a seamless user experience that supports long-term business growth.
My Portfolio
FAQ
What do you need to get started with my app?
I need your app idea or reference app, list of features, platform (Android only), and any UI designs or wireframes if available. You can also share your backend/API details if you have them.
Do you develop separate native apps for Android and iOS?
Yes. I develop Android apps using Kotlin and Jetpack Compose and iOS apps using Swift and SwiftUI.
Can you add AI features?
Yes. I can integrate ChatGPT, OpenAI, Gemini, Claude, AI chatbots, AI agents, voice AI, image analysis, and document-based AI.
Can you work on my existing app?
Yes. I can fix bugs, upgrade dependencies, improve performance, redesign screens, or add new features to an existing Android or iOS app.
Do you provide backend development?
Yes. I work with Firebase, Supabase, Node.js, Python, REST APIs, databases, authentication, and cloud services.
Can you integrate Firebase and third-party APIs?
Yes, I can integrate Firebase, REST APIs, Google Maps, Payment Gateways, and more based on your project needs.
Can you publish the apps?
Yes. I can prepare release builds and assist with Google Play Store and Apple App Store submission.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C chriskuah
Malaysia
He was willing to work with me to make sure my requirements were met.
$400-$600
Price
4 months
Duration
Helpful?J 
jamesmuriuki750
Repeat Client
Kenya
Excellent work. Developer does all it takes to deliver exceptionally work. I highly recommend him
Up to $50
Price
5 days
Duration
Helpful?A andreasjansa
Austria
Fast response and fast delivery. Thank you.
Helpful?V 
victormih
Repeat Client
Romania
Gohil followed through on my needs and feedback, and submitted the project in working condition
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C chriskuah
Malaysia
He was willing to work with me to make sure my requirements were met.
$400-$600
Price
4 months
Duration
Helpful?J jamesmuriuki750
Repeat Client
Kenya
Excellent work. Developer does all it takes to deliver exceptionally work. I highly recommend him
Up to $50
Price
5 days
Duration
Helpful?A andreasjansa
Austria
Fast response and fast delivery. Thank you.
Helpful?V victormih
Repeat Client
Romania
Gohil followed through on my needs and feedback, and submitted the project in working condition
Helpful?
