About Hello World

Hello World is a messenger for people who do not all speak the same language.

Why it exists

Families are spread across countries now. A grandmother in Dakar, a daughter in Paris, a cousin in New York — between them, three languages and one group chat that half of them cannot read. The usual answer is that everyone meets in the middle, in whichever language most of them can manage, and the people with the least of it say the least.

Hello World was built so that nobody has to meet in the middle. You write in the language you think in. The people you are writing to read it in theirs, and hear it in theirs. The translation is not a feature you switch on for a difficult message; it is simply how the chat works.

What it does

Messages, voice notes and posts are translated between more than thirty languages. Voice notes are spoken aloud on the other side, and can be spoken in a voice built from your own. Calls are voice and video, one to one. There are posts and statuses among the people you actually know, savings circles for families who run them, and a small shop for people who sell.

The homepage sets out what Hello World does, feature by feature.

Who runs it

Hello World is operated by El Hadji Fadilou Seck. Reaching us, for any reason, is covered on the contact page.

Where it is

Hello World is in a private test on iPhone, by invitation. It is not on the App Store yet. What that means for you as a tester is that things change often, some of them break, and the fastest way to get something fixed is to tell us — see support.

How it is paid for

Nothing in Hello World charges anyone today. There is no subscription, no in-app purchase and no advertising network in the app. If that changes it will be said plainly, here and in the app, before it happens rather than after.

We do not sell personal data, and translation and speech run on servers we operate rather than being sent to an advertising company. Translation, voice and AI explains what is processed where.