I will professionally materialize your smartphone app idea for both iOS and Android using React Native, a leading industry-standard technology from Facebook. I'll develop your app from scratch to completion, though app store submission isn't included in the basic package. Throughout the process, I'll keep you involved at every stage to ensure the app meets all your requirements. Rest assured, I strive for perfection and with over 3 years of experience in React Native, I have the capacity to deliver top-notch quality.