Logger Lite 1.7, released July 1, 2014, is the last version to support Mac OS X 10.6. To download, click the link below:
Mac OS X (10.6-10.9)
http://www2.vernier.com/download/LoggerLite17.dmg
See also:
How can I get the installer for an older version of Logger Pro, such as for Windows XP?