That sounds good, thanks for the tip. The actual problem I was trying to solve is described below.
I published an Android app, and with it, a parents/educators guide. The PDF and link to Google Play is available on my website.
Since then, I decided to switch over to a one-page site, and just link stuff to itch.io. So I'm in the process of cleaning up and uploading all my apps. I know itch.io allows you to upload non-executables (eg. Book), which is fantastic, but I also know Android makes it hard to install APKs from the web.
Linking Google Play sounds like the ideal solution. Thanks for this.