Can you find the country of a mobile user based on ip ? (Rails 3.2/geocoder gem)

Question

I need to customize website based on country of user. I want to use geocoder gem.

Can these type of tools and geocoder gem specifically find the country of a user using a mobile device (mobile phone, tablets...) ? or does it only work for set/fixed computers/laptops ?

Note: in don't need something more precise than country identification.

Answer 1

It would work on mobile /tablets too and is not limited to a fixed set as you think.

Reference