This simple app shows how deciding how much to Tip a bill can be an easy effort.
The user just starts the app. Then puts in the bill total. Followed by just selecting one of the pre-programmed buttons for the tip amounts. Then they are given how much the tip is with the tip selected along with the total of the bill. Tip options come in 5%, 10%, 15% and 20% amounts. The currency for the app is in U.S. Dollars. Screen caps taken from App running on Motorola Moto X Developer Edition running Android 5.1 Lollipop (API level 21).