Because you asked us to, we're answering your questions.
Q: What is the meaning of life? A: It's to prank call your aunt's house phone.
Q: Can I use PrankTools for good or evil? A: Only for good. Unless you're a sociopath, then you're probably a 1-star reviewer on the site.
Q: Is there a PrankTools app? A: Not right now. But we're working on it. With all the money we're making off your prank calls, we're hiring an app development team... eventually.