Gone are the days of being stranded on an unfamiliar street corner in the rain - Uber allows users to order a private town car with a few clicks. Register with the app by creating a profile, inputting credit card details and selecting a pick-up location. Within minutes, a professional driver will arrive curbside. This user-friendly app sends a text to the passenger with the car's estimated arrival time and another when the car arrives. Passengers can also review a headshot and ratings of the driver. The service is reliable and particularly useful in cities or neighborhoods where cabs are hard to flag down on the street, but it's costly - a 40% to 100% premium on what customers normally pay for a taxi. At the final destination, passengers receive a receipt of the charge to their credit card via email. This free app is compatible with iPhone, iPod touch, and iPad, but requires iOS 4.3 or later. It is optimized for iPhone 5.