Narrowing the app gap just a little - "Add to home screen" on qualifyiny sites, looks to be sensitively implemented: http://updates.html5rocks.com/2015/03/increasing-engagement-with-app-install-banners-in-chrome-for-android
My tweets and posts live here on my own domain these days.
You can explore them here and follow me on Mastodon instead of Twitter where I'm not currently active.