BlackBerry Messenger, also known as BBM is an instant messenger and videotelephony application included on BlackBerry devices that allows messaging and voice calls between BlackBerry, iOS, Android, and Windows Mobile users. Developed by BlackBerry Limited
License: Freemium
BlackBerry Messenger focuses on security and group messaging, making it ideal for business users, while Google Allo offers smart features and an integrated experience with Google services, appealing to casual users. The choice between them largely depends on user needs for security versus versatility.