One of the biggest challenges in developing an app is ensuring that it has the desired look and feel for each platform. Specifically, you want to write the code and theme once and have it just work. Another challenge is figuring out the workflow on a daily basis, from writing code and previewing it in the browser to deploying to a device for testing purposes. You want to minimize a lot of unnecessary steps. It's certainly difficult if you have to rebuild the app and test it independently for each mobile platform.
Ionic CLI provides seamless integration to improve your workflow to ensure that you can catch all the issues for each platform ahead of time. You can quickly view the app on various platforms in the same browser window. This feature is powerful because now you can make a side-by-side comparison for each screen...