85 % Searches for apps related to learning a language have grown 85% YOY. Related Content Most app users churn within 3 months—here’s how to avoid becoming a statistic How machine learning is changing the game for app marketers Related Data 60% of smartphone users have contacted a business directly using the search results (e.g., “click to call” option). Across nine markets, researching hotels and airfares on a mobile device is as common as shopping for clothing. Smartphone users cite price as the most important factor in booking travel. Easy search functionality and a simple booking process are also cited as important features. Friction on a mobile site when completing a booking can lead to travelers trying another site. 70%+ of U.S. travelers agree that they "always" use their smartphones when traveling, up from 41% in 2015.