According to Smart Insights (www.smartinsights.com/social-media-marketing), Facebook is still the most widely used social networking app globally. Instant messenger apps like WhatsApp and Facebook Messenger are tied for second place. Instagram, Twitter, and Snapchat are a little further down the chart, ranked as 7th, 9th, and 11th, respectively. These numbers indicate the number of people worldwide who are using the listed apps. See the chart below for more details. \ Another …