Additionally, every day, users send more than 30 billion messages.
Koum posted about the milestone on Facebook:
I hope you all had a happy and peaceful holiday season. Today, we’re thrilled to share that WhatsApp has more than 700 million monthly active users. Additionally, every day our users now send over 30 billion messages. As humbled and excited as we are by these numbers and our continued growth, we’re even more excited to keep building a great product in 2015. Most of all, we’re grateful that so many of you are using WhatsApp to stay in touch with your friends and family, business colleagues and classmates. We promise to continue working hard to make WhatsApp even better.
Readers: What do you like most about the app?