Whatsapp The world’s #1 messenger Monthly Active Users:

• Individual messages • Broadcast messages • Group chats • Emojis • “online” and “last

seen” status • Voice message • Voice call • Video call • International call • Web version • End-to-end encryption • Sharing of photos, videos, contacts, location, documents FACEBOOK MESSENGER Developer: Facebook Inc, USA

SKYPE Developer:

Skype Technologies, USA (later acquired by Microsoft) China

1.2 billion 300 million