strCalc Calculator is a free calculator app for Android devices. This app boasts a 12-digit accuracy and large buttons that are easy to tap. It has a customizable interface with 30 different key layouts, vibration settings, and digit grouping options. Additionally, it includes memory functions and a last answer feature. The app also has percentage, square root, and tax calculation functions. You can keep track of the memory value on the main screen.

The app has a simple menu with functions such as clear, settings, and various memory functions. It also has functions for percentage, square root, tax-included and tax-excluded calculations, grand total, and clipboard copy and paste. Overall, strCalc Calculator is a user-friendly and customizable calculator app that is suitable for everyday use.