Facebook Messenger

Messenger is Meta's standalone messaging app, and the most useful thing its listing says is what you do not need: an account on Messenger can be reached without a phone number, which is the opposite of WhatsApp's model and matters if you would rather not hand over your number. The listing is organised around features rather than around communication — Meta AI, HD photos, shared albums, large files — and it leads with the assistant rather than with privacy.

You find people through Facebook and Messenger and message or call them, with no phone number required. Group chats support shared albums and file transfers up to 100MB, which covers documents as well as photos, and messages can be edited or unsent after sending. Meta AI sits inside the app as an assistant. Stories and Notes are the ephemeral parts, both disappearing after 24 hours.

The app is free and the listing says so without describing a subscription or a paid tier. What it does not say is how the service is funded, which for a Meta product is a more useful question than whether the messaging costs anything: the money comes from advertising elsewhere in the company, and the listing's silence on that is the silence of a listing written to sell features rather than to explain a business.

Encryption appears in Messenger's listing but is not led with, which is the contrast worth drawing against WhatsApp: both are Meta products, and WhatsApp's listing opens with end-to-end encryption while Messenger's opens with an AI assistant and mentions encryption in passing. That difference in emphasis reflects a difference in the products. Messenger's most cautious users enable disappearing messages and secret conversations as options, rather than getting that protection by default. The listing does not describe age requirements, moderation, or what happens to reported accounts.

People who want to reach Facebook contacts without giving out a phone number, and who send photographs and documents rather than mainly talking. If encryption by default is what you are choosing on, WhatsApp is the better fit and the same company makes it.

A feature-dense messaging app whose listing tells you what it does and skips what it costs you. Reaching people without a phone number is a real advantage over WhatsApp, and the file and album features are more capable than most. The encryption framing is the thing to read carefully: present, mentioned, and not the point, where on WhatsApp it is the first paragraph.