Instagram took a mere four months to add 100 million monthly active users to its base, which now exceeds 700 million, the company announced Wednesday. That speedy growth rate is compared to the six months it took for Insta to hit 600 million and the nine-month intervals between milestones for 500, 400 and 300 million over the last two-and-a-half years.
Even if it just maintains this current rate of growth, Instagram will soon join other Facebook apps Messenger and WhatsApp in having a billion users. Facebook boasts 1.8 billion users, which tops social media rivals like Snapchat (375 million) and Twitter (328 million).
Earlier this month, Instagram announced it had 200 million daily users for its Snapchat-like Stories feature. By comparison, Snapchat's total daily users is 161 million, though that number should rise when it delivers its first earnings report next month.
An Instagram spokesperson told TechCrunch that its growth was driven by improved connectivity, including a simplified sign-up process. The company also said that 80 percent of IG users reside outside the U.S., with Brazil at No. 2 with 45 million users.
"We've made it even easier for people across the globe to join the Instagram community, share their experiences and strengthen connections to their friends and passions," the company said in a blog post. "With new features like stories, live video and disappearing messages in Direct, people now have more ways than ever to express themselves and feel closer to what matters to them."