Woman with glasses comparing prices and doing calculations on her phone in a supermarket

woman glasses comparing prices calculations phone supermarket analysis shopping consumer price check financial planning budgeting grocery store retail mobile technology cost comparison consumer behavior price evaluation smartphone use retail experience expense tracking digital convenience economic choices mobile calculations smart shopping technological assistance supermarket visit price scrutiny mall pricing analysis budgeting tool supermarket shopping mobile convenience digital consumer financial responsibility grocery expenses priceconscious shopping behavior app usage mobile economic decision pricing financial cost evaluation efficiency savvy shopper