The number of smartphone sales are increasing world-wide as time goes on. Smartphones now take up 55% of all mobile phone sales in the world. The numbers are only expected to increase further to 60% by 2019 according to Ericsson. This is very promising data that has been released for professionals in the mobile application development field. The opportunities are growing to create an app for smartphone users as smartphone sales rise. Also stated in the article is that video will make up 50% of all mobile traffic in 2019. To read more about this and see the chart displaying past, present, and future data, check out the linked article below.