Issara in-app purchase receipt validate karaddi, locally validate karana ekai, app eka directly iTunes server walata connect wela validate karana eka unsafe kiwwa neda? Ape server ekak use karala, App Store server ekka receipt validate karana eka neda safe? E dawas wala discover karapu receipt validation security issue ekak nisa neda ehema kare? Thama e security issue eka recent iOS release wala thiyenawada? Directly App Store server walata connect wela receipt validate karana eka safe nadda?
