logger vs recorder

logger

noun
  • That which logs, such as a computer program to keep track of events. 

  • A worker whose occupation is to harvest trees. 

recorder

noun
  • An apparatus for recording; a device which records. 

  • A musical instrument of the woodwind family; a type of fipple flute, a simple internal duct flute. 

  • A judge in a municipal court. 

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