I have reviewed and feel confident that I can implement your requirements
I'm an experienced developer with high skills in HTML5, Javascript, and CSS3.
I have built several hybrid mobile apps using React Native and Ionic since 2012, and have the complete testing environment with iPhone 4s, 5, 5s, 6, 6s, 7, 8, X, iPad 2 and 4th generation.
I'm not binding on any other projects and I can start work immediately.
Looking forward to working with you.
Regards