Tech giants Facebook and Google are by for from in of on to competition to attract the talents by for from in of on to a 15-year-old app developer. Australian teenager Ben Pasternak sparked the interest by for from in of on to the companies after he designed an app by for from in of on to a game called Impossible Rush. The app has been downloaded more than 500,000 times since its launch by for from in of on to October. The addictive game managed to climb higher than Vine and Twitter by for from in of on to the App Store charts. Pasternak has been invited by for from in of on to Facebook’s internship department by for from in of on to a tour by for from in of on to the company’s headquarters by for from in of on to California. He is also being wooed by for from in of on to Google, whose vice president has asked him to come to visit its campus. Both companies hope Ben could be one by for from in of on to their future developers. Mr Pasternak is one by for from in of on to 450 high-school-aged entrepreneurs accepted by for from in of on to a Google and MIT sponsored event called Hack Generation Y. The high-schoolers have been invited by for from in of on to ten countries across the world. They will collaborate by for from in of on to a 36-hour project to create a sellable product. They will also listen by for from in of on to featured speakers by for from in of on to the technology and hacking world. Michael Matias, the organiser by for from in of on to the event, said: "Pasternak is a young entrepreneur and clearly ambitious. He has shown the world that age is just a number." He added that: "[Pasternak's] iPhone app was extremely impressive and if we were to guess, we would never imagine it was run by for from in of on to a 15-year-old."