In order to get BBM on Android and iPhone, you’ll need to have created a BlackBerry account (which can be done directly through the app) or sign into an existing one.
Once you’ve signed in, you’ll want to look through your previous contacts or your SIM contacts to see if anyone has got BBM already installed or even if they have a BlackBerry account. If you cannot find your friends through the app, message them on social media or send them a text to ask for their BBM PIN, which is a unique number associated to your account. This will allow you to directly find and add your friends and family.
After you’ve successfully added them, you can start chatting to them, as you would have done on WhatsApp. You’ll receive notifications on all mobile platforms and its battery usage is minimal. Read next: How to get BBM on iPhone and iPad.