Does the other person have an Appworld account?

Send a gift request
Instead of buying an item from the BlackBerry App World storefront, you can ask a BlackBerry Messenger contact to buy it for you. When your BBM contact responds to your gift request and purchases the item, you can download the item from the item details screen.
1.
On the item details screen, click the gift icon.
2.
Click Request Gift.
3.
Click a BBM contact.
4.
Click Send Gift Request.