Amazing app -- if I were an iPhone user, I'd buy it. I don't watch videos, so I apologize if this suggestion is already handled, but WRT to the inventory tracke

Amazing app -- if I were an iPhone user, I'd buy it. I don't watch videos, so I apologize if this suggestion is already handled, but WRT to the inventory tracker, will it only work if you know how many servings you just bought? I'd love it if my loose tea serving remaining would be estimated by my entering how much (in oz or grams) of tea I just added to the stash, and it estimating servings remaining based on stated servings/weight for that tea, then learn from my actual usage. (As a loose tea lover, I hate trying to guess how much I have of what, and store estimates aren't always accurate.)