What is DrupalGap? DrupalGap is an open source mobile application development kit for Drupal websites. It uses Drupal, PhoneGap, jQuery Mobile and jDrupal. Drupal Module The DrupalGap Module is the connection between mobile applications and Drupal websites. Mobile App Development Kit With the DrupalGap Mobile Application Development Kit and API, developers can create custom multi-platform mobile applications that communicate with their Drupal websites.