An iTunes plug-in, G-Force for Mac shows images and shapes moving in rhythm with the music. The software comes free of charge and offers millions of possible visualizations due to its extensive collection of shapes. There are even keyboard shortcuts for quick adjustments while the visualizer is running.
Easy setup: While a lot of similar plug-ins are notoriously hard to set up, G-Force for Mac features a speedy wizard through which you can effortlessly install it.
Hot key support: While the visualizer is running, you can use keyboard hot keys to skip shapes and adjust the visuals to your liking.
Extensive visuals collection: With its many variables and large number of shapes, colors, and images, this plug-in can produce millions of unique visualizations. Those who like to tinker can edit the plug-in's preference files to narrow down the number of visualizations, so you'll see only what you like.
Low performance: Due to the sheer number of images and calculations needed, running this visualizer on an older Mac may cause the audio to stutter or crack, or even make iTunes unresponsive.
G-Force for Mac stands out from the crowd thanks to its ability to be adjusted on the fly as well as to the sheer number of visual possibilities it features. If you have a newer Mac and like watching images synchronized with the audio, this free plug-in is a great way to go.
Editors' note: This is a review of the trial version of G-Force for Mac 5.3.