I think it's very easy for Facebook to add stories to each of their apps. It's a single code base I believe! Stories are now in: - Instagram - Messen

I think it's very easy for Facebook to add stories to each of their apps. It's a single code base I believe! Stories are now in: - Instagram - Messenger - WhatsApp - Facebook (soon, I've seen the beta) They are going after $SNAP in each and every warfront!