Castto is an app, which allows you to mirror your smartphone on your TV screen. You can easily access all of your games, photos, videos and other application on a big screen using this Screen Mirroring App. If you are tired of searching the greatest Apps for casting your small screens into larger screens to get awesome experiences, here is the best and most user-friendly Screen Mirroring App. All you need is to make sure that your phone and your TV are connected to the same WIFI in order for the Castto App to work successfully.