The app.'s OCR engine will read the coupon and the found the numbers btw. winner numbers if exist and mark the coupon row letters if numbers found.
When first opened try to connect the web service to get the latest winner numbers and earned amounts published by government.
OCR engine must be in app to be able to work offline.
77 威客就此工作平均出价 $2447
I have gone through project description, but I would like to discuss to clear my understanding of requirements. Please PM me so we can discuss the requirement in more details