Currently as far as personal computers, YackPack will run on Windows 2000 and higher and Macintosh OS X and higher.

YackPack does not yet operate on PDAs and mobile devices, such as Blackberry and cellular phones. We look forward to implementing this in the future.

Blackberry has recently begun to allow third party software on their devices and for other mobile applications a more robust version of Flash Light is required. On some devices you can hear messages but you can’t record yet. They haven’t solved the microphone issue yet.

The Walkie-Talkie Widget may soon be available on PDAs or other mobile devices as they begin to implement Flash 6 and 7.