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10 Kylie Mobile App

Kylie's mobile app was downloaded around 1.75 million times in its first 24 hours on sale.
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11 Kim's Book of Selfies

Kim's book of selfies, appropriately titled Selfish, has sold over 125,000 copies to date.
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12 Kardashians Social Media Power

Each of the five sisters can command five- and six-figures sums to endorse products via posts on social media,

