An entry in this category is an app that is specifically developed for a mobile device (phone, tablet, smart-device, etc.). This app can be developed for any operating system (Android, iOS, Windows Mobile, etc.) as long as the student has a device or simulator that can run the app on the day of the fair. (This category does not include mobile-friendly web pages - please see the Internet Applications category). Pre-planning documentation materials such as a storyboard and a flowchart are required.

You may have up to 2 people on a team but teams and individuals will compete against each other within each grade grouping.

There will be a 15 minute judging time limit on all entries.