Apple Music is set to surpass Spotify in number of U.S. subscribers this summer, according to a report in the Wall Street Journal.

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The Verge explains Apple Music is now the second most popular streaming service around the world with 36 million subscribers, a low number compared to Spotify's 70 million paying subscribers worldwide.

However, there's an important difference between the growth rate of the two streaming services. Apple is growing 5 percent a month in the U.S., a rate much higher than Spotify's 2 percent, which makes it possible to predict that it will become the most popular streaming service in the country this summer.

According to the report, this growth is related in part to Apple Music being easily available for consumers who already have the company's devices, such as iPhones and iPads.

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