Since 2016, Sergey has been dedicated to crafting mobile applications that resonate with users and help businesses realize their visions through polished, high-performance apps. Bringing over a decade of experience, he specializes in React Native, iOS, and Android development, earning a Top Rated Plus status on Upwork. His expertise has driven substantial revenue growth for clients, with several apps achieving Top 50 rankings on the App Store. Sergey prides himself on exceeding client expectations—99% of his feedback reflects this commitment. Offering services including React Native development, backend solutions with Firebase, Supabase, and Node.js, white-label app customization, and seamless Apple Pay and Google Pay integration, Sergey is a reliable partner dedicated to delivering quality and scaling your mobile presence effectively.