I don't really know of an app, I just read labels or ask the all powerful Google if that fails. I've never really tried any "Atkins products" seems just like a whole lot of money grabbing to me. For snacks though I cook up sausages/ hard boiled eggs along with other stuff ready to just nobble, pork scratchings aswell absolutely love for a snack, peperami is good as well weather that's allowed on "Atkins" I don't know, but it's all low carb! And yummy! Good luck and let us know how you get on !