Users will still be sent the pending registration email. Turn off email confirmation and empty the pending email subject and body if you want nothing to be sent.
You can buy any of our addons individually which come with 6 months of support and updates. You can do this from our addons page below.
www.joomlapolis.com/addons
CB AntiSpam costs $15 since we intentional have put it at the lowest price tier. So for $15 you get 6 months of updates and support for CB AntiSpam and when that 6 months ends you can continue to use CB AntiSpam.