Can I install this like an app / add it to my home screen?
Yes — it's an installable web app (PWA). Your browser can “Add to Home Screen” or install it, and it opens full-screen with its own icon. The app shell also works offline.
Help & Guide
Install & offline
Install BFOD.us as an app on iPhone or Android, add it to your home screen, and keep working when you have no connection.
When there's an update, will it reload and lose what I'm typing?
No — updates ask before refreshing rather than reloading out from under you mid-entry.
Is it in the App Store or Google Play?
It's a web app first, and billing runs through the web on every platform. A Google Play version (wrapping the same site) is planned; there's nothing separate to install today.