Multi Calculator, developed by XDPI Lab, is a free utility app for Android that offers a wide range of calculators in one place. With this app, users can perform various calculations such as simple calculations, VAT calculations, date calculations, percentage calculations, and loan calculations.

The app's interface is straightforward and user-friendly, making it easy for users to navigate and perform calculations quickly. Each calculator has its own tab, and users can easily switch between the calculators with just a tap. The app also supports multi-window mode, allowing users to use two calculators simultaneously.

The simple calculator can handle basic arithmetic operations, while the VAT calculator can calculate the amount of VAT included in a price. The date calculator can calculate the difference between two dates, and the percentage calculator can calculate percentages and percentage increases or decreases. Finally, the loan calculator can calculate loan payments and interest rates.

Overall, Multi Calculator is a comprehensive and useful app for anyone who needs to perform various calculations on their Android device.