I am looking for an app that allows customers to add a name to a tshirt. The tshirt will have a design on it already, but the name field will be customizable. The font and placement will stay the same, only the text itself will change. I am having trouble finding an app that does this and also shows a live product preview with their customized name.
Can someone please point me in the direction of an app that can do this? Or is this something that will require custom code and therefor require hiring an expert?