It also works/worked on my Asus Chromebook R11.
But ... to install it I need to allow installations from untrusted sources. Because it is not in the Play-store. I am now using my Chromebook in 'normal' mode and I am not allowed to install stuff manually.
So I need to use my Chromebook in de developer mode or I can not install the gopher-app.
And that brings me to the question I have since long;
1) Why is the gopher app not in de Play-store?
2) And can there not a solution been found for whatever the reason is and can someone submit it to the Play-store?