いつでも電卓 is a convenient calculator that allows users to perform quick calculations while browsing the web or working on other tasks. It is an overlay calculator, which means it can be accessed at any time without having to switch between apps.

With just a tap on the notification icon, users can easily launch the calculator. It offers the functionality to copy and paste calculation values, making it compatible with other applications. The calculator's size can be adjusted using pinch gestures, and its position can be changed by dragging it across the screen.

Users also have the option to minimize the calculator, displaying only the calculation results. Additionally, the transparency of the calculator can be adjusted, allowing users to create a see-through effect with the underlying apps.

Furthermore, いつでも電卓 offers customization options for the buttons, enabling users to create their preferred calculator layout.

Overall, いつでも電卓 is a versatile and user-friendly calculator that provides convenience and flexibility for quick calculations on Android devices.