Progressive Web Application
PWA are designed as mobile-first single-page applications (SPA) to be fast with engaging navigation and interactions, and a layout optimized for mobile.
User experience is largely improved
Via his device browser, the user can add the website’s icon to the device’s home screen, and a launch screen will introduce the opening.
Window Store even has a "automatic integration".
Push Notifications
Offline access
Background tasks
Storage
Bluetooth / Beacons
Sensors
etc.
"One code for all devices", this web development strategy makes costs lower than everything to cover all devices, regardless to the platform.
"Zero install", no need to find, download and install it from an app store.
All pages will be indexable from search engines, as classic website.
A PWA will offer a easiest and more granular control on releases and updates, comparing to Store distributed apps.