SmarTip is a free tip calculator available on the Android platform, developed by Solomin Andrey. It falls under the category of Business & Productivity and specifically under the subcategory of Finance. The application serves the sole purpose of calculating the tip amount and the total bill amount.

SmarTip has a simple interface that allows users to enter the bill amount and select the percentage of the tip using a slider. The application then calculates the tip amount and displays the total bill amount. The percentage of the tip can be changed anytime by moving the slider to the left or right. The application also allows users to round off the total bill amount to the nearest integer if they wish to.

Overall, SmarTip is a straightforward and easy-to-use application that serves its purpose well. It is a handy tool for those who want to quickly calculate the tip amount without any hassle.