Simple Classic Calculator

一個輕量級的計算器，簡單易用

A Calculator for daily calculation purposes. This calculator can be used for addition, subtraction, multiplication, division and some other standard math operations. there are six easy-to-change background color options on the menu.

Simplify your life with this calculator app. Save time on math homework, pay bills, complete finances, and calculate your daily money and cash out.

feature :

- simply ergonomic designed

- a dark background with bright numbers, saves battery life

- lightweight app and not consuming phone's storages

- useful for students, teachers or housewives to calculate groceries