Nicky Kaur S.
Senior Mobile App Developer | Flutter, React Native, Swift, Kotlin
I help startups and businesses launch mobile apps that don't need a rebuild six months after launch — built right the first time, in Flutter, React Native, or native Swift/Kotlin, whichever fits your product best. I'm a Senior Mobile App Developer with a 5.0-star rating across 22 projects, specializing in Flutter, React Native, iOS (Swift), and Android (Kotlin). Because I work natively as well as cross-platform, I can recommend the right technology for your product instead of forcing every project into the same stack — based on your requirements, existing codebase, performance needs, and long-term scalability. What I build: - Flutter & React Native apps, or native iOS/Android when performance demands it - Mobile MVPs and custom apps from Figma designs or a spec - Backend integrations — REST APIs, Firebase, Supabase, third-party APIs - Real-time features, chat, push notifications, auth & social login - In-app payments, subscriptions, maps & location features - App Store & Google Play deployment, app migrations & rebuilds - Bug fixing & performance optimization on existing apps Whether you have a complete spec, Figma designs, an existing codebase, or just an idea, I can help you plan and build the right mobile solution. 📩 If you're looking for a mobile developer who can handle both iOS and Android — and tell you honestly which stack fits your product — send me a message. I'll review your idea and suggest the best approach before you hire me.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $892
Billed in all: $54,668$55k
$99 in the last 6 months
Across 11 contracts
Across 32 contracts
Earnings, last 30 days
Skill rankings: Top 23% in Swift
Ranked by MRR among everyone on Upwork with the skill.
- #31App Feature Development66 freelancers · 🇬🇧 #1Top 47%🇬🇧#1 of 1
- #52App Marketplace156 freelancers · 🇬🇧 #1Top 33%🇬🇧#1 of 3
- #643Dart2,324 freelancers · 🇬🇧 #5Top 28%🇬🇧#5 of 34
- #744Kotlin3,021 freelancers · 🇬🇧 #13Top 25%🇬🇧#13 of 56
- #846Swift3,634 freelancers · 🇬🇧 #19Top 23%🇬🇧#19 of 83
- #867App Development2,592 freelancers · 🇬🇧 #14Top 33%🇬🇧#14 of 62
- #1,746REST API5,062 freelancers · 🇬🇧 #22Top 34%🇬🇧#22 of 70
- #1,846Supabase4,116 freelancers · 🇬🇧 #38Top 45%🇬🇧#38 of 90