Capacitor app maker is a cross-platform app runtime that makes it easy to build web apps that run natively on iOS, Android, Electron, and the web. These apps are called "Native Progressive Web Apps" and they represent the next evolution beyond Hybrid apps.
Capacitor app provides a consistent, web-focused set of APIs that enable an app to stay as close to web-standards as possible, while accessing rich native device features on platforms that support them.
Progressive web app is a library that allows you to build apps with a single HTML,CSS, JS codebase. The goal is to eventually replace Apache Cordova with a system that puts Progressive Web Apps on a level playing field.