I think you can download the zip and unzip on mobile too?
The "local" feature may or may not work depending on how the browser app handles opening local HTML files.
Viewing post in Heat Control - edging trainer comments
Hiya,
I was able to test on an Android phone and it was working here.
If not images are showing, it could be Javascript not running or a permission issue only for some phones, hard to tell. Would probably need a test version with the help of people having the issue, to see if any errors pop up, something like that.
Also realised landscape mode was forced which left so little room for pictures, at least that should be better....