iTunes is one of the oldest media apps currently in use. While many people know it as a music player, iTunes has since evolved to offer digital movies and TV shows for rent or sale. The bigger and newer releases can cost up to $20 to purchase, but iTunes also has past hits, modern classics, award-winning pictures, and even local films you can rent for as low as $2. Purchased films and TV shows are available for as long as the studio allows them to be, but rentals are a different story. Once you’ve rented a particular title, you have up to 30 days to start watching it. And after you start watching it, you’ll then have 48 hours before it expires. iTunes comes pre-installed on Apple devices, but it’s also available on Windows PCs and Android Smart TVs.