Best apps like Smart Calc+

LazyCalc – Smart Calculator

Scientific, Percent Calculator

Free

This all-in-one calculator app offers basic, scientific, percentage, and tip calculation functions, alongside a unit converter. It features calculation history, offline functionality, and a clean design for fast, accurate results on the go.

Calc Engine

Custom graphing calculator

Free

A highly customizable calculator with advanced features like graphing, equation solving, and unit conversion. Design your own keyboards and functions to streamline your workflow across Apple devices.