Snapchat Android Beta allows users to test out new Snapchat features before they are rolled out to the public. Any Snapchat user interested in becoming a beta tester can opt in to this using a simple switch in their application settings.
How To Join Snapchat Beta
Open the Snapchat app and select the Settings menu (represented by the gear icon):
Scroll to the Advanced section and tap Join Snapchat Beta:
Tap on Count me in! to confirm:
Moving forward, each time a new feature is in beta testing, Snapchat Beta testers will receive a code, which will allow them to access and test the new features and then report back.