No way to check tickets by scanning them. – Official NY Lottery Review

Other states’ lottery apps allow you to scan tickets to check them. Why doesn’t this one? Other reasons for the 1-star rating: you can’t look up a range of dates when checking past draws, if you try to look up a certain date where there was no drawing it doesn’t suggest the next-closest date, looking up a particular past drawing makes it hard to go back to the list of recent draws, overall navigation feels clunky, and the graphics are amateurish (e.g. a roll of money with an axe in it)
Review by Dagger2011 on Official NY Lottery.