For the simulator, the font must be installed in the the operating system. On iOS devices you do need to include code in your build.settings, like
UIAppFonts =
{
“actionj.ttf”,
“oogieboogie.ttf”,
“SAF.ttf”,
“curlycue.ttf”,
“Grease.ttf”,
“grinched.ttf”,
},
Android just needs the files in the folder with main.lua. All of this is clearly documented in the blog post listed above.
Rob