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Santosh Kumar
@santoshkumar701
Vetted Pro
Level 2
Professional Mobile App Developer iOS Android Flutter React Native
India
Hindi, English
Vetted by Fiverr Pro
Santosh Kumar was selected by the Fiverr Pro team for their expertise.
Vetted for
Mobile App Development
About me
I’m a passionate Mobile App & Website Developer with 10+ years of experience creating modern, scalable, and user-friendly digital products for startups and businesses worldwide. I specialize in Flutter, React Native, iOS, Android, SwiftUI, Kotlin, WordPress, Laravel, Node.js, Python, and AI-powered solutions. I focus on transforming ideas into high-performance apps and websites with clean UI/UX, fast delivery, and reliable architecture. My approach is simple:
✅ Clear communication
✅ Quality work
✅ Attention to detail, and long-term client satisfaction.
Let’s build something amazing together
Skills
Santosh Kumar
$15/hour
Offline •
Average response time: 1 hour
See my services
Cross-Platform Development
I will be flutter developer for mobile app development flutter app development ai app
Cross-Platform Development
I will do react native app development for mobile app ios and android app development
Want to work on an hourly basis?
Tell Santosh Kumar what you need.
$15
/
hourPortfolio
Work experience
Software Developemnt
Self • Freelance
Aug 2017 - Present • 8 yrs 11 mos
Freelance Mobile App & website Developer Self-Employed | Jan 2017 – Present | Remote As a freelance Mobile & website App Developer, I design, develop, and deploy high-performance mobile applications for startups, entrepreneurs, and growing businesses worldwide. I specialize in building scalable, user-friendly applications for iOS and Android platforms. Key Responsibilities: Develop cross-platform and native mobile applications using Flutter, React Native, Swift, and Kotlin Translate client requirements into functional, visually appealing mobile solutions Integrate RESTful APIs, third-party services, and cloud-based backends (Firebase, Node.js) Implement secure authentication, payment gateway integration, push notifications, and real-time features Optimize app performance, reduce crash rates, and improve UI/UX Manage complete app lifecycle: concept, development, testing, deployment, and maintenance Publish and maintain apps on Google Play Store and Apple App Store Selected Projects: • E-Commerce Mobile App – Built a scalable shopping platform with secure payments and real-time order tracking, achieving 50K+ downloads in the first 6 months. • Fitness Tracking App – Developed a health monitoring app with progress dashboards and wearable integrations. • Food Delivery Application – Created a real-time GPS-enabled delivery system with admin dashboard support. • Healthcare Booking App – Designed a secure appointment and video consultation platform with advanced data protection measures. Core Skills: Mobile App Development | Flutter | React Native | Swift | Kotlin | Firebase | REST APIs | UI/UX Collaboration | App Deployment | Agile Development
239 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 239 Reviews
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romualdk
Repeat Client
United States
Santosh and his team are extremely professional and highly skilled. They understand the concept perfectly and know exactly what they are doing. I’ve worked with many freelancers on Fiverr, but so far they are definitely at the top of my list, and I’m very pleased to continue working with them. Thank you again
Seller's Response
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kranthi96
Australia
Santosh has been an excellent partner to work with on a complex ride-hailing platform build. What stood out most is his depth of technical understanding — he doesn’t just execute instructions, he asks the right questions upfront and flags issues before they become problems. His communication is clear,...
Seller's Response
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joeypolychoice
Repeat Client
Australia
I have been working with Santosh and his team for 2 years. Absolute legends. The work is professional! Always understanding! I love how they don’t take advantage of new work and try upsell! Always fair and honest. Thank you so much guys.
Helpful?
dmasiv
Repeat Client
Australia
Santos does a create job, he and his team are highly professional and efficient at delivering jobs on time and within spec.
Seller's Response
Helpful?
skoneti
Repeat Client
United States
It’s has been really good working with this team for a while now. We definitely improved in communication. The last iteration which we worked on was efficient.
Helpful?
