I have made an online tool available on my website and on google play called ApkCreator, which will let you easily build unlimited customized android apps webview from web content quickly & without coding skill by using your phone, tablet and desktop! This is the best solution at the right price to everyone, fixed cost, no monthly fees.
Made very simple, it will let beginner in android coding create their own app easily , and some advanced developer quickly generate an app used for testing their site in webview browser our anything else!
Why there is a cost? Answer is simple, Because this type of software require a fast vps hosting which cost alot monthly. In order to keep it alive, i need a revenue to pay those bill.
Online tool available at this website: ApkCreator - Online tool
Phone and tab version available here: ApkCreator - Google Play