Download Master Key
(6.0) for OS X 10.9 & up (Zip - 15.8 MB )
(5.6.5) for Mac OS X 10.4 & up (Disk Image - 13.5 MB )
(5.5.2) for Windows 2000/XP/Vista/7/8 (Installer - 5 MB )
(4.5.2LC PPC) for Mac OS 8-9, All PowerMacs (Stuffit - 5.3 MB )
(4.5.1LC 68K) 68040-based Macs, w/7.1 or higher (MacBinary Self-extracting - 2 MB )
 
Version Notes
Mac Version 6.0
  • Larger Drill interface
  • Retina support
  • Removed game
  • Lots of code modernization
  • 64-bit
Mac Version 5.6.5
  • Fixes to Key WPM and Key Error Rate displays in History for Sierra and up
  • Updated codesigning
Mac Version 5.6.4
  • Fixes to Drill Editor
Mac Version 5.6.3
  • Developer signed for latest OS versions
For a more detailed version history, see Master Key Help.