Google is a app launched by google for doing money transaction online. Concept of the app is not a new concept there are many apps launched with the same concept and use. Design of the app is simple and easy to use , once it is understood it can be used easily. There is no other feature than transferring money, many other apps have many other features with the money transferring feature. Sometimes the app does not work properly. App can be only used for transferring money.
Thank you