[Key Features]

Easily perform four fundamental operations and engineering calculations with our intuitive calculator. To access the engineering calculator, simply tap the engineering calculator icon. Review your calculation history by tapping the calculation history icon, where you can reuse any previously inputted formulas by selecting the one you need.

[Additional Features]

Convert units effortlessly with our unit calculator. Tap the unit calculator button to convert a wide range of measurements including:

• Currency
• Area
• Length
• Temperature
• Volume
• Mass
• Data
• Speed
• Time
• Date
• BMI
• Discount
• Age
• Numeral System
• GST
• Split bill
• Frequency
• Fuel
• Angle
• Pressure
• Force
• Power
• Loan

Customize your experience by changing the theme mode. Tap the night mode icon to switch to a darker interface. Specify the time range for night mode in the settings. Choose your preferred color from the settings menu to personalize your calculator's appearance.

Manage your calculation history by long-pressing an entry on the history page to delete it. Change the app's language by selecting your preferred language from the settings. Enhance your interaction with the calculator by enabling a beep or vibration for button presses, which can also be adjusted in the settings.

Tailor your numerical display by selecting your preferred numerals and number format from the settings. Adjust the number of decimal places after the comma to suit your needs. Enable or disable full-screen mode, keep a record of your calculations, and keep the screen on during use, all configurable in the settings.

For a cleaner interface, you can hide certain icons through the settings menu.

*****

Last but not least, all these features are packed into a small-sized app, and it's completely free to use.