Dear Client. How are you doing?
After reading your description carefully, I got your requirements fully.
I am an iOS and Android development expert who have deep knowledge in Swift, Objective-C and Java.
Also I have rich experiences in mobile app development. Surely you will get best result as long as work with me. I can work with your timezone, so always contactable while you are working. Hope to work with you for long term.
Looking forward to contact with you for more details.
Regards