Wordpress Plugin - OptIn Split Testing Question

Hi,

So I purchased a plugin for WP called Hybrid Conect - basically allows you to split test opt-in forms all over your Wordpress site and automatically run with the best combination. Awesome split testing of all your opt-in forms and you can insert them with a shortcode, widget, etc etc.

My question is this. I got the professional version of this plugin, which license says I can do the following...

• Use on your own sites
• Use on unlimited sites
• Use on client websites
• Sell/flip sites with the plugin installed
• Free Support

If I'm allowed to use it on client websites, does this allow me to essentially have a member here on BHW hire me I install it on their website - say $5-10 or something? Am I reading this wrong? Asking because I don't want to do something against the license, but it seems if you are a client (hire me to change a page title) I could technically add it into their install. Or am I not thinking this through?

Technically since it says you can use on a clients website, they should be able to hire you for anything and you should be able to install the plugin. It doesn't specify what work you're required to do for the client from what I can see.