I am much obliged to be able to help you with your Android app development project. I'm willing to debug your existing code in Android Studio or I can create a new android app for you in android studio. I can make an application with functionalities of online database storage (Google Firebase) and micro transactions (Online Payment Gateways). You will be able to earn with your app with the admob integration. You can take my help to create a localization app with Google Maps features. I can also clone any famous application for your new or existing business venture. After understanding the requirements we can talk about a reasonable price depending upon the complexity and features of the app.