Download items using a Wi-Fi connection only

If you're concerned about your wireless data usage, you can set up your BlackBerry device to only download apps, games, music, and videos when you're connected to a Wi-Fi network.
  1. In the BlackBerry World storefront, swipe down from the top of the screen.
  2. Tap Settings > Network & Data Limits.
  3. Set the Use Wi-Fi only switch to On.