To whom it may concern,
We just built an application (Impress) for POS system, aimed at automating the email address input process, make it easier. With a touch screen swipe, a list of nearby Impress’s users’ information will pop out. By identifying him/her through the displayed image and name of the customer’s choice, current customer’s email address will be retrieved.
Here are the demo videos based on Shopify POS:
Also, please check our website for details: https://www.ceruleanedge.com
Our app can be installed as a keyboard and works in Shopify POS perfectly. But, the app won't have any Application URL, neither the callback URL.
In that case, we can NOT even create an application on the Shopify Partner Dashboard. Maybe someone can help us go through to submit the app in your App Store?
Thanks so much for your help.