Engagement numbers of app are usually 4x its website counterpart. By default, app has features that increase engagement such as: - push notification to bring b

Engagement numbers of app are usually 4x its website counterpart. By default, app has features that increase engagement such as: - push notification to bring back idle users - icon in user's home screen for brand recall - faster response time due to native UI - full screen mode that avoid browser tab switching But, engaged users are the one who download the app. So, it is not clear if app is the cause for engagement or effect of users being more engaged. In any case, the numbers make businesses to push their app more aggressively.