Unofficial snapchat app for Windows Phone
6snap is an unofficial, fully featured Snapchat app for Windows Phone. 6snap allows you to take photos, videos, add captions and more.
You can search for other snapchat friends, save pictures and customize notifications with your own ringtone or sounds although screen notifications can be slow.
There's no video chat supported in 6snap and the interface isn't quite as slick as Snapchat for iPhone but for Windows Phone users that want Snapchat, 6snap is generally an excellent choice.