Need more adjustments for the camera to scan barcodes. Iphone has trouble zooming in

I created an app with this that Culligan delivery drivers use to navigate their daily route, track inventory, and communicate with customers. It also serves as their customer database manager. All for free. This app is absolutely incredible for those who take the time to figure out how to use it. I’ve spent hundreds if not thousands of hours developing apps with Appsheet that my previous and current employers use.