A hybrid app is a combination of native and web apps. Similar to native apps, you can get hybrid apps through an application store. Nowadays, hybrid apps are very popular because they provide a cross-platform solution and display the content that they get from the Web rather than the contents installed on the device only.
Here, we will take an example of the Hybridtestapp; you can get it from https://github.com/manojhans/Appium/blob/master/Application/Android/Hybrid/Hybridtestapp.zip?raw=true.
If you are working with an Android version higher than 4.4, then you have to use Selendroid (in that case, you have to set the capability as (MobileCapabilityType.AUTOMATION_NAME,"Selendroid")); otherwise, Appium has built-in support through the ChromeDriver.
While working with hybrid apps, you need to make the changes defined at https://developer.chrome.com/devtools/docs/remote-debugging#configure-webview. We have already made these changes in Hybridtestapp....