A counter app is a simple application that runs on Android devices. Its primary function is to count and manipulate numerical values.

Incrementing Numeric Values: A counter app provides an "Increment" button to increase a specific number (usually an integer). Tapping the button increments the counter's value by 1. This functionality is helpful for tracking events, actions, or measurements.

Resetting Numeric Values: Typically, a counter app also includes a "Clear" or "Reset" button. Tapping this button resets the counter's value back to zero.

Versatile Applications: Counter apps have a wide range of applications. They can be used to track exercise repetitions, measure ingredients while cooking, or manage time during meetings or presentations.