Blindfold Bowling

Blindfold Games are entertainment apps provided as a service to the visually impaired community by Objective Ed. Your in-app upgrades pay for the development and support of these games. 
Bowling is an fully accessible audio game that's similar to the ten pin bowling.
In Blindfold Bowling, you can play by yourself, against a variety of computer opponents, or side-by-side with another person.
You throw the bowling ball by either flicking with one finger, or aiming with one finger and flicking, or setting the exact angle with your thumb and forefinger, and then flick. The faster you flick, the faster you throw the ball.
You hear the ball rolling down the alley, and hitting pins. Like real bowling, you can get a strike, or a spare, or even miss completely with a gutter ball. And you can post your high scores to Facebook or Twitter.
Bowling was suggested by several blind gamers who enjoyed Blindfold Pong and Blindfold Spades.
The game includes several in-app upgrades, including a starter pack for unlimited play, an ability to customize your ball and the pins to make the game harder, to let you pick and customize your competitors, and side-by-side mode.