First, before I tell you the difference between the two words, we want you to know the definitions of words of it first. The term "Cache" means temporary files that it happened already after using his role is to help you make use of more smoothly and faster. Like when we restart the phone and try to open other applications or cameras, we will notice that it has been slow or efficient. Whereas the word "data" means data that include cabbage whole, including Cache, and it happens with existing programs that we install come.
Turned phrase Clear app cache means cleaning temporary files of any program and erase the cleaning will also help to storage space of the vacant lot. The word that Clear app data means that clear data of any application for reinstatement was not Uninstall and Clear data also will clear the Cache.
For these functions, we see it in Settings> Application> click on any program we will see it. Combined, we hope you can understand the description that we have described above and all doubts about these words.