158 million people are using Snapchat every day

158 million people are using Snapchat every day, and on average, open the app 18 times a day, according to Snap Inc.'s initial public offering prospectus.

That means, on average, Snapchat users are spending between 25 to 30 minutes in the app every day.

The company filed Thursday to go public, revealing for the first time how many people use the disappearing photo app.

The company says 2.8 billion Snaps are created every day, and 60% of its daily users are using the Snapchat to also chat with their friends.

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