Digital Trends – In the shadow of more impressive announcements from Google about Plusâs skyrocketing user base, Instagram has released some numbers that should give pause as well. Having only launched in October of 2010, the iPhone-only app now boasts over 150 million pictures across its 7 million worldwide users. Each day these users upload 1.3 million photos; thatâs about 900 photos each minute, 15 each second.