Games are not movies or stories; they're vehicles for creative decision making.
"Desire makes everything blossom; possession makes everything wither and fade." (Marcel Proust)
It says it costs $2.99 to install. Is that a one time charge?
Yes. It's that cheap. And it's a good app IMO. I've been using it awhile, and I like the way it has been supported and updated. It started out good and got better.