Cordova is a good way to start.
When I used to develop Hybrid apps, Cordova was the way to generate APKs.
I really enjoyed it, since it has a lot of Plugins, like FireBase Cloud Messaging Plugin to receive notifications within your hybrid App. It's more than a simple WebView App.
Apache Cordova is an open-source mobile development framework. It allows you to use standard web technologies - HTML5, CSS3, and JavaScript for cross-platform development. Applications execute within wrappers targeted to each platform, and rely on standards-compliant API bindings to access each device's capabilities such as sensors, data, network status, etc.
Use Apache Cordova if you are:
- a mobile developer and want to extend an application across more than
one platform, without having to re-implement it with each platform's
language and tool set.
- a web developer and want to deploy a web app that's packaged for
distribution in various app store portals.
- a mobile developer interested in mixing native application components
with a WebView (special browser window) that can access device-level
APIs, or if you want to develop a plugin interface between native and
WebView components.
Here are all the steps needed to start with Cordova https://cordova.apache.org/docs/en/latest/guide/cli/index.html
Also, I used to follow these steps to generate a signed APK so it's possible to launch it on Google Play.
How do I put my cordova application on the android play store?