A free program for Android, by SeedsJP.
Baseball Scoreboard is a simple and easy-to-use scoreboard app for baseball. It can be customized to display a variety of statistics, including the score, the batting average, and the number of hits, strikes, and outs.
The team names and colors are also customizable, so you can adjust them to suit your needs. The background color is also changeable.
You can also customize the text color and font size.
There are a number of other options you can use to customize the app to your own needs.