The nzpost.co.nz online tools where available on the website but the website was not yet responsive and with customers wanting core functionality in the form of apps.
Rather than spend time designing mobile versions that could work on each mobile platform. We decided to break the website tools down into the core functionality each tool offered
I worked with a developer to translate the key functionality for Android/iOS apps. Rather than spending ages designing screens and handing over to a developer. I worked back and forth with the developer rapidly sketching ideas and using the component library to make ui decisions.