Message to choose mobile version
 

I've been looking for some plugin that makes a user to enter them from a mobile option you decide you want to enter the mobile or full version of the site appears, that what I have seen on wordpress but I guess there will be something for vbulletin?

Here 'a catch ...

https://vborg.vbsupport.ru/external/2014/10/21.jpg

The message says
I think it is very useful as it gives the option to the user to decide which version to use for navigating the forum.

When you install TapaTalk or Forumrunner, users will get a message (when browsing the site on a mobile device) telling the person that your site has a mobile app, and the message has a button to take the person directly to the app via their mobile app store.

if that's true but I want use the mobile style, not invite install applications you mention (I have tapatalk)

You would need to probably use a mod like this, https://vborg.vbsupport.ru/showthread.php?t=292704 to detect if the users browser is a mobile, then write your own code to show that message to the user.

Many forums and web sites (including my own) provide an optional URL for troublesome mobile devices. We force the device to use a mobile style but still do detection to define the device, to select the right presentation mode.

(Just food for thought) :)