The APL385 Unicode font and keyboard key mappings for the Dyalog APL glyphs can now be installed and configured for Apple Macs. Instructions can be downloaded from
http://www.dyalog.com/apl-font-keyboard.htm (Dyalog APL for UNIX Apple Macintosh Supplement).
Although Dyalog APL does not yet run on Apple Macs under OS X, this support enables Mac users to ssh to a UNIX box/Raspberry Pi and run Dyalog APL from there.
N.B. Apple Mac users can run Dyalog APL on their Apple Mac under Parallels or VMWare.