i have the low syn snacks one, i look at it from time to time but never used it to go and get something. its in an order anyway of the brands so you need to know what your looking for. syns on line is much better esp as now the app on iphone/android is out as you can search and everything is listed.
with the low syn snacks one its hard to know if its not listed in error or not listed as over 5 syns!