Hello World Get the app

Get the app

Hello World, on your iPhone

The app is finished and in daily use. It is not on the App Store yet, so today you join by invitation, through Apple’s TestFlight.

Ask for an invitation See what it does

How you get in today

Leave your email address on the home page and we will write back. A person reads every request, so it is not instant. If we send you an invitation it arrives by email, with a link that installs TestFlight and then Hello World.

  • It is free. Nothing in Hello World charges anybody today.
  • You need an iPhone running iOS 17 or later. It works on iPad too.
  • You sign up with your phone number, or with Apple or Google.
Hello World running on an iPhone.
  • iPhoneRequirediOS 17 or later
  • An invitationTodayby email, while the test is private
  • A few minutesname, birthday, a password your phone can remember

This is what you get

Chats that arrive in your language, calls to anyone in the circle, and Moments your whole family can read.

Hello World on three iPhones: the chat list, the calls screen and Moments.

Want in?

Tell us who you are. If you are writing about Hello World, say so — we answer those first.

Ask for an invitation Already have it? Get help