Hello, I want to ask some questions about this software. - Is Xenforo suitable without an extra cost for smartphones or tablets? - I've seen that there are some addons for which we need to pay (resources), if we want to use them. My question is if most of the common and important addons are for free or not? I do not have the time to look for everything, so I ask. - Is it easy to create our own styles for the forum? With our specific icons and colors? - Are there any addons for twitter and facebook? How do they work? Thanks in advance.