Life Balance for Macintosh
Power Macintosh or Intel Macintosh running OS X 10.3.9 or higher.
20 MB of disk space.
1024 x 768 monitor.
Life Balance for Windows
Windows XP or Windows Vista, Windows Vista x64
20 MB of disk space for installation.
Requires the Microsoft .NET Framework 2.0. (More Info)
Life Balance for Palm OS
Any handheld (Palm, Sony, Kyocera, Samsung, Handspring, etc.) running Palm OS 3.0 or higher, including Palm OS 5, with 500K of storage for the application and its data.