Oh gosh - this sounds WAY too techie for me........I would spend more time putting my data into the app than I would care to....especially if I had to start with the existing stash. Maybe if I was buying my first ever piece of fabric, but, given my advanced age and hoarding tendency..............I'll stick with my memory and risk an occasional double buy or purchase of something that doesn't match - that's how the stash got built I the first place!