Hi There,
Greetings of the day!!
I have read your job description and understood the scope of the work involved. I feel that my experience and qualification perfectly match with your project. I can assist you with developing a app as per your specifications.
Well, I am an expert Mobile app developer (both Android and iOS) and have remarkable skills in Swift, Android Studio, Xcode, Objective-C, GPS or RFID technology. I have recently accomplished a similar work so I am confident that I can manage your work easily.
If you feel comfortable then we can begin the work.
Regards
Sonia