BIG Flat Calculator is a free Android application developed by Onmobio Flashlight, categorized under Utilities & Tools. The app provides a simple and easy-to-use interface with large buttons and visible numbers on the keyboard, making it easier for users to count and perform basic calculations.

The calculator has no complicated functions, making it ideal for users who need a straightforward calculator application. It supports portrait or landscape mode and is compatible with various models of Samsung, Motorola, LG, Huawei, Sony, and other Android phones and tablets. The results screen can be scrolled, ensuring that you don't miss even one calculation. The app has all the basic functions such as plus, minus, times, divided by equals, and memory.

Overall, BIG Flat Calculator is a great option for users looking for a simple yet effective calculator application with large buttons and visible numbers.