A web system is required developed in HTML and angularJS. Database should be Firebase Firestore.
We just need to search for a client and check whether his monthly bill is paid or not . System should be able to Add,Delete and update a client(Name ,Contact ,Address) and package(Name,Price). System should maintain billing history of all clients. system should allow user to generate invoice and to print it.
System should use Firebase Authentication to authenticate user. Web system should use good looking Bootstrap theme.
No server side languages Like PHP or C-Sharp are not required because Angular JS will be responsible for fetch and show data.