This "trial" plugin should not be in the WordPress repository. A 14 day trial for a $20 a month plugin. These guys are kidding themselves if they think this plugin is worth $240 a year. IT is terrible compared to other plugins released that do the same thing for 1/10th of the price.
I'm fine with the freemium and donation plugins, what I'm not fine with is bad devs who don't explain it is a trial until you install it on your site, after deciding you don't want it and deleting the plugin is leaves junk and database entries behind to clutter-up your back-end and slow down your site, they also continue to spam you with junk mail.
You guys need to Understand this is WordPress NOT Windows. You seem a bit confused there and this is typical Windows Developer mentality. Just in it for the $$$