you can upload to your google drive account and share it
or same for ms one drive. ms one drive is a ms app from play store for android phone.
its possible to install direct from cloud drive.
normal distribution to all people on this world you need a google developer account, then you can upload it to play store.
if you have open https://www.google.de/
in browser and you are logged in
you will find drive in menü. at pc you can drag / drop in to drive web site.
the user must also allow install from unkown origin in security settings.
google drive is a installed default app at android phone.