PWA is the web app with the native-app flavor: After the installation, a user clicks on its icon on a device home screen and gets straight to the website.

• The Web App manifest (JSON file)
• Service Worker

• Full responsiveness and browser compatibility.
• Connectivity independence (off-line mode).
• Native app-like interface.
• Push notifications.
• Background synchronization.
• Self-updates.
• Safety (HTTPS).
• Discoverability and easy installation.

• Limited functionality and increased battery use compared to native apps
• Search traffic losses due to no presence on app stores

• The Washington Post
• Shopify
• Twitter

-Progressive Web Apps: Core Features, Architecture, Pros and Cons