OS X Step by step setup guide
Install TuneSync Host on Apple OS X
Download and install the TuneSync host.
Start the installer

Drag the TuneSync Server icon to the Applications folder shortcut
Start the TuneSync Server by double clicking on TuneSync Server
in your applications folder. The application is running when you see this icon in the system tray.

Open iTunes to verify it is installed and running correctly. Add and configure your playlists.

Install and Configure TuneSync on Android
From your Android device, download and install the TuneSync client

Tap the "Host Computer" option
Make sure your phone is connected to your home Wi-Fi router
TuneSync will search for your computer on your network

Select the name of the library you wish to sync with
TuneSync will now attempt to connect to the host computer to get a list of your playlists

On the Android device, select the playlists you wish to sync with

Your setup is now complete. TuneSync will now syncronize your playlists
Select "Sync Now" to start the sync process

See Troubleshooting for connection help.