anytime vs ever

anytime

adv
  • At any time 

intj
  • "you're welcome" in response to "thank you" or "thanks." 

adj
  • Suitable for any time; not associated with any particular time. 

ever

adv
  • At any time. 

  • As intensifier following an interrogative word. 

  • In any way. 

  • Continuously, constantly, all the time (for the complete duration). 

  • Always, frequently, forever. 

det
  • Shortening of every 

adj
  • Occurring at any time, occurring even but once during a timespan. 

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