Responsive websites are traditional websites adapted for mobile devices. They are reprogrammed to fit any screen size and information is triaged according to the priorities of smartphone users.  Users must access the website through a web browser; no downloads or mandatory account creation is required. Websites can be accessed from any browser on any device, whereas apps are developed for either the Android (think Samsung) or iOS (iPhone) operating systems. A mobile app is a standalone application downloaded onto a user’s mobile device. Account creation lets users save their preferences and purchase history for enhanced personalisation.  Mobile apps can leverage the device’s capabilities (eg: geolocation, phone camera) to offer special services such as push notifications, location-based offers, and image searches. Some mobile apps offer offline functionality, while website access always requires an internet connection.