There is currently no approved way to utilize Snapchat on a PC. There are a couple of workarounds, though, that allow you to utilize the program on your PC. Using an Android emulator such as Bluestacks is the most usual method. This will allow you to use Snapchat as an Android app, with full access to all of its features. Using a web-based software like Snapdex is another common option. This will only give you limited Snapchat access, but it's better than nothing.