電卓かぶせ is a calculator app that allows you to overlay a calculator on top of other apps, making it easy to access and use anytime. Whether you need to quickly perform calculations, use a calculator while shopping online, or simply prefer a simple design, this app is recommended for you.

You can launch the calculator from within the app or directly from the notification bar. The app allows you to move the calculator to your preferred position by tapping the "Move" button. Additionally, you can calculate tax rates with a single tap using the "Tax Included" and "Tax Excluded" buttons. Long-pressing the calculation result allows you to copy it to the clipboard.

The app also offers various customization options in the settings menu. You can choose to enable or disable launching the calculator from the notification bar, display the previous calculation result on startup, remember the position of the calculator, enable or disable vibration when tapping buttons, and customize the colors and transparency of each button.

The app is regularly updated with new features and improvements. Recent updates have addressed issues such as the display showing 0 when pressing the operation buttons, calculation results appearing on two lines, and adding a profit margin calculation function.

Please note that the app is only available in Japanese.