adb does allow you to install apps, but it is a little intimidating to setup and use. The process goes something like this:

Setup:

Download Google's USB driver and platform-tools packages.

Modify the USB driver to recognize the Vox (Windows only, and it is easier than it sounds).

Install the USB driver and platform-tools.

Create a configuration file for adb (again, this is easier than it sounds).

Use:

Start the command prompt.

Type: adb install <filename>

If you want more help, feel free to ask.