In 2018 the most-downloaded iPhone app was YouTube, reports USA Today, while Amazon’s best-selling item was their Fire TV Stick for streaming video. The No. 1 earner on YouTube this year is 7-year-old Ryan. For all those unboxing videos and playing with toys — and his own new line of toys at Walmart — he and his family will pull in a cool $22 million, according to Forbes. Ryan launched the channel in 2015 — when he was four — and now has 17.3 million followers.