A solution that worked for me was to go into the Android phone, bring up the tile view of apps and close the GooglePlay app.  Go into settings/apps and force quit the GooglePlay app, then clear data.  Then go back into the Meraki app and click to install the app again.  It will load the app in GooglePlay but this time it will show as being installable.  At least it did for me.  Obviously, this is not a good solution for those that have mass deployments.   ... View more