Hello Sir/Mam,
Hope you are doing well..
I have carefully read your project requirement and understood that you are looking developer team for App Developer.
Android users that would allow corresponding back and forth for map data, messaging, mobile calling with a function to set up an account to charge for services with a deposit and top off feature.
I am pleased to inform you that we have recently started work on freelancer.com but we having more than 7 years of experience in Android and IOS development.
Can you please provide us document and we will let you know best price and timeline.
Can you please share your best time for the chat then we can discuss further and move ahead.
Waiting for your response....
Warm Regards,
Mirali