From September 15th, 2014 to February 2nd, 2021, 100% user give 5-star rating. for Calculator+ chrome extension.
OMG THERE PARENTHASES #best calculator ever
Нормальный функциональный калькулятор. Редкость по нынешним временам. (Просто и со вкусом)))
Really neat design, nothing to complain about. Useful for everyday purposes.