Try to create a app like behavior in javascript and use a webview in android and ios to wrap your app. We do it like that. You will still have some native parts

Try to create a app like behavior in javascript and use a webview in android and ios to wrap your app. We do it like that. You will still have some native parts like push notifications, ads, social logins etc. But your ui render is web. Just make sure you have an app like experience. Doable these days.