This is the 649th most frequent Chinese word.
方便
Convenient; to make things easier.
Here, '方便' is used to describe the ease of access or usability of the restaurant.
这个餐馆很方便。
This restaurant is very convenient.
In this sentence, '方便' is used to inquire about someone's ability to do something with ease or without difficulty.
如果你方便的话，请明天来我的办公室。
If it is convenient for you, please come to my office tomorrow.
Here, '方便' implies that the application is designed to ensure ease of use or convenience for users.