I have 2 LED signs behind me on the show, but with this app, I could easily change it up. Best LED Machine is an app that turns your iPad into an LED signage. The free version will program one line, however the pro version will let you set up multiple lines of text.
You can change the colors of the text, and the color of the background, too. You can have square LED dots, circular, or line LED dots. Choose to scroll, move up, drop down, and more. Change the font, change the scroll speed, and change the size of the text.
I might just change out the old LED signs for an iPad on my wall.
Best LED Machine works for iPhone and iPad and is only .99¢