SMS vs notification

SMS

noun
  • SMS — Seiner Majestät Schiff – literally, "His Majesty's Ship" in German; 

  • A ship prefix for a ship in the navy of the Empire of Germany (usually for the period leading to WWI and WWI) 

verb
  • To send a message on a cell phone. 

notification

noun
  • The act of notifying. 

  • A text message on a cell phone. 

  • A specific piece of information that serves to notify. 

How often have the words SMS and notification occurred in a corpus of books? (source: Google Ngram Viewer )