Comparison
LOOP vs WhatsApp for messaging across languages
Both apps send messages instantly. The difference is what happens when the person on the other end doesn't speak your language. In WhatsApp, translation is something you do. In LOOP, it's something the chat does — in both directions, every message.
The short answer
WhatsApp is built for people who already share a language. If your friend writes in Portuguese and you read English, you translate it yourself — long press, copy, switch app, paste, read, switch back — and when you reply, they get your English, not their Portuguese.
LOOP flips that. You choose one native language when you sign up. Everything arriving in your chats is already in it, and everything you send lands in the other person's language. Nobody copies, pastes, or switches apps.
Side by side
Incoming messages
Arrive already written in your chosen language.
Arrive in the sender's language; you translate them yourself.
Messages you send
Delivered in each recipient's own language automatically.
Delivered exactly as you typed them.
Copy-paste steps
None — translation happens inside the conversation.
Select, copy, open a translator, paste, read, come back.
Voice notes
Transcribed in the speaker's language, then translated for you.
Played back as recorded; transcripts depend on device support.
Group chats
Each member reads the same conversation in their own language.
Everyone sees one language — usually the loudest one.
Meeting new people
Discover shows people worldwide with the language they speak.
You need someone's phone number first.
Price
Free to message, with optional Premium to remove ads.
Free to message; no translation included.
WhatsApp has been adding device-level message translation on some platforms. It helps with reading, but it's still one-directional: the message you send leaves in the language you typed.
Why the two-way part matters
One-way translation only fixes half a conversation. The other person still has to do the same work in reverse — which is why cross-language chats usually collapse into short, careful, slightly awkward sentences.
When both directions are handled, people write the way they normally write: long, casual, in slang, in a rush. A message typed in Vietnamese lands in English, the reply typed in English lands in Vietnamese, and the rhythm of a normal conversation survives.
Where WhatsApp still wins
Everyone is already on it. If you and your contacts share a language, LOOP isn't solving a problem you have. WhatsApp also has a far bigger feature surface — calls, payments in some countries, business tooling.
LOOP is deliberately narrower: instant messaging where language never gets in the way. Chats, voice notes, stories, groups, and discovery — all translated.
Cost
LOOP is completely free to use. The free experience is supported by small, non-intrusive ads inside the app. If you want an ad-free experience, a premium upgrade removes them — messaging, translation, voice notes, groups, and stories stay unlimited either way.
WhatsApp is free to message, but it does not translate conversations for you; translating everything by hand costs time instead.
Try a conversation in two languages
Pick your language, message anyone on earth, and read every reply in it.