Hello.
How are you?
I am very interested in your project.
I have read your project description very carefully.
I can make the mobile app for you using xamarin.
I have developed many android and ios apps for 6 years by now.
I would like to work with you for a long time with good friendship.
If you want, I can send you my previous apps.
I will do my best for you when you hire me.
Thanks.
Best regards.