Saying you want something is one thing. Taking action to show you’re serious is another. Snapchat, the popular photo/video sharing app has opened up a survey to determine which platform will be the next supported. If you’re on Windows Phone and desire this app now is the time to let your voice be heard.
You have to go to Snapchat –> Support—>Technical Support—My Device Is Not Supported
From there you can select Windows Phone and enter your email to be notified when the app is available for Windows Phone. It is important that users fill out the form en masse and let the developers know that it is worth their time to support Windows Phone.