Gears support

Gears™ is a set of JavaScript® extensions that you can use to create robust and full-featured web applications. Using the Gears APIs, you can create applications that extend beyond the browser platform.

Support for Gears APIs, excluding the LocalServer API, was introduced in BlackBerry® Device Software 5.0. The BlackBerry® Browser supports Gears 0.5.

The Gears APIs that the BlackBerry Browser supports include the following key features:

  • persistent client-side data storage, so that a web application can manipulate and store user and application data directly on the device
  • the ability to run multiple JavaScript scripts in parallel, so that users are not blocked from accessing the page that is rendered in the browser while scripts are processed
  • the ability to create a Home screen icon for your application, so that users can access your web application just as they would access a Java® application that is installed on the BlackBerry device

Offline functionality is currently limited because the LocalServer API is not implemented in BlackBerry Device Software 5.0.

For more information about Gears APIs, visit


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