easily shareable with links - always can accessible to most updated app without any pain of updating the app Cons - Do not work offline - not on your homescreen - can’t do push notifications to your phone
Sharable via url - work online, offline, or on intermittent, slow connections - instant loading ( with splash screen ) - push notifications - safe : served via HTTPS - smooth animation under 60fps
https://codelabs.developers.google.com/codelabs/your-first-pwapp Build a Progressive Web App with Firebase, Polymerfire and Polymer Components Codelab https://codelabs.developers.google.com/codelabs/polymer-firebase-pwa