By default Tumblr enables their standard mobile theme for all blogs.
If you would like to use the mobile version of our theme you will need to turn off the default mobile theme. You can find this option in the “Advanced” panel which you will find at the bottom of your customisation panel.
Please note that if you are using the Tumblr app, all blogs are forced to use the standard mobile theme. This is something we have no control over.
We recommend using Tumblr’s standard mobile theme because it is much quicker than any theme and is usually a lot easier to use.