What is the Calculator pro(FREE) Scientific and Business ready application, how does it work?

According to the introduction of Merizek Works, Calculator pro(FREE) Scientific and Business ready is a Tools app on the Android platform. There is currently a 1.5 version released on Dec 14, 2019, you can see the details below.

We built app which can performs real-time calculations.
This calculator display-time is set to automatic ON for better use without blind/sleep screen distortion.

This Calculator-Plus contains simple arithmetic functions like;-
★ Addition,
★ Subtraction,
★ Roots & Square root,
★ Multiplication,
★ Division,
★ Factorial,
★ Power factor,
★ Inverse,
★ Power inverse,
★ Logarithm,
★ Sine,
★ Cosine,
★ Tangent,
★ Sine-inverse,
★ Cos-inverse,
★ Tan-inverse,
★ Computed in either RAD or DEG value with Delete function.

OTHERS
★ Stylish skins
★ Built-in functions and constants
★ Full and simple layout option
★ Auto Portrait mode

✔ We added thousand separator for best result print.
✔ Added - Button touch effects, calculated answers can be copied, etc
✔ Carry out Simple arithmetic functions like: +,-,x,÷,√ ,ℯ,⦝,log,ln