WhatsApp has 1bn daily users; WhatApp Stories has 250m

"Facebook is winning the race to bring Snapchat’s Stories format to the rest of the world before its originator. WhatsApp Status, its version of Snapchat Stories, now has 250 million daily active users. That’s despite it being relegated to a secondary dedicated tab in the app, opposed to being front and center on the home screen like Instagram Stories which also now has over 250 million users."
Source:  TechCrunch, 26th July 2017