OneCalc is a free calculator app for Android developed by Everyday Calculation Apps. It offers a comprehensive set of features, making it a one-stop-shop for all your calculation needs. From basic calculations like addition, subtraction, multiplication, and division to advanced scientific operations such as trigonometric, logarithmic, and exponential functions, OneCalc has it all.

In addition to the main calculator, the app also includes several additional calculators for unit conversion, construction, finance, everyday math, date/time, and health. The finance module has calculators for savings and loan repayment, interest calculation using simple and compound interest, and a currency converter (currency rates updated 4 times a day). The app also has calculators for finding discount price, tip amount, and price per unit when out shopping or dining, and for calculating profit margin and tax-included/ tax-excluded price of goods and services. Moreover, it has a right triangle calculator to help with therule, area and volume calculators for geometric shapes, a land area calculator using a compass, and an age and BMI calculator.

OneCalc is an excellent app that offers a wide range of features for all your calculation needs. It is easy to use and navigate, making it ideal for both personal and professional use.