FP Scientific&Basic Calculator

FP Scientific & Basic Calculator is a free calculator app that blends basic arithmetic with scientific functions, and adds currency and unit conversions. It supports 160 currencies and 10 unit types, offers dark and light themes, and split-screen use on iPad, making it handy for everyday math, travel costs, and quick conversions.

Key features include auto-saving history, customizable decimal display, multiple button sounds, and straightforward feedback options via the settings page or email. It’s designed to be fast, free, and easy to use across devices.