The BlackBerry Java Virtual Machine manages memory usage on the smartphone. The BlackBerry JVM allocates memory, performs garbage collection, and automatically swaps data between random access memory and application storage.

BlackBerry Device Software provides a number of tools to help you manage data in your apps. These tools provide ways to back up data, remove sensitive data, remove data that is no longer needed, and free up memory when needed.

• Best practice: Minimizing memory use
  
• Removing sensitive data
  
• Using the Garbage Collector
  
• Managing low memory
  
• Backing up data