Why it's similar
WhatsApp is a mainstream messenger with end-to-end encrypted text, voice, and video and group chats, the closest large-scale rival to Messenger. Reviewers credit it with keeping families connected across the world and even helping in emergencies, the everyday-communication role Messenger fills. It has nearly 18 million ratings.
How it differs
WhatsApp uses phone numbers rather than Messenger's Facebook accounts, and reviewers flag aggressive auto-bans when adding many contacts or groups. At 4.69 stars it edges Messenger's 4.66. The two are direct Meta-owned rivals with different identity models.
