(Telecompaper) Almost 40 percent of Dutch smartphone users have a music application installed on their smartphone, according to the latest research from Telecompaper on mobile apps in the Netherlands. Music apps, such as Spotify and iTunes, are especially popular among teenagers and reached over two-thirds of the age group in March 2015. The quarterly consumer survey found that the most popular app in the Netherlands remains WhatsApp, installed on almost 9.7 million Dutch smartphones. Although WhatsApp is still gaining popularity in the overall market, rising to 88 percent of Dutch smartphone users from 82 percent a year earlier, the app shows a small decrease in its share among teenagers in the past six months. Snapchat meanwhile is growing steadily, especially among younger people, and reached over 1.7 million installs in the Netherlands in March 2015.