Hello Sir,
I can build an Android app for you for the purpose of animal "vyapar".
I can also provide you my personal contact info for better communication and many payment modes for your own benefits.
I'll show you the project report at every stage of its development , you can give me feedback and suggestions to change anything you want within the app.
I am the Developer myself and not the agents/mediators like other freelancer who will take your money and will get the work done by someone else at cheap rate which will not benefit you because of two reason 1) you will have to suffer a lot for making changes. 2) you will end up paying a good money but won't receive the result as expected.
Moreover I'll also give you low cost customer support for 3 months.
I am a full stack Android Developer and I have a rigid knowledge of Firebase services. I am doing Android App Development for the past 3 years as a profession and for the past 5 years as an amateur. I have delivered several projects with a great customer satisfaction ratio. I have good knowledge of Java and am familiar with everything in Android SDK. I can plug in all social logins in the Android App as well as can integrate Firebase Database and Cloud Messaging.