compelling vs what you see is what you get

compelling

noun
  • An act of compulsion; an obliging somebody to do something. 

adj
  • Strongly or irresistibly evoking interest or attention. 

  • Forceful. 

what you see is what you get

proverb
  • The image corresponds to the reality. 

  • The screen image resembles the printed output. 

How often have the words compelling and what you see is what you get occurred in a corpus of books? (source: Google Ngram Viewer )