Avoid installing app on external storage as it may cause stability issues.
Locate askiaface in the Play Store app (you can search for askiaface, askia, or any other relevant term) ordirectly on the web. Once you've selected askiaface, press the Install button.
In order for the download / installation process to successfully complete, you must press the Accept & download button. Note: we advise you to also activate the Allow automatic updates option in order for askiaface to update automatically by itself.
You can now start the application and connect to your askiafield server.