Hi, I will develop the complete Android app and back end required for it. You need to provide the database , and charges for third party api like chat sdk, sms gateway etc to the respective companies. I have developed many a few android apps like reminder, fitness app which suggests diet, pedometer etc , recently finishing working on a Location based hiring app. The location based hiring app that I did is almost similar to what you want, in this app anyone can hire workers and services as per their need. So, I feel I am enough competent for Your project. I will be able to give you an awesome product. I will handle Your project effectively and easily. I have knowledge on android starting from basic to complex systems like payment gateway like paypal and payumoney , chat sdk like sendbird and applozic integration etc etc. You will get honest communication with me. I will give You a completely professional product. You will get 1 month free remote support post delivery of Your project. So, I hope we would be working together soon.