Interactive awareness · Arabic & English

Fall for it here, so you don't fall for it out there.

Jarreb! puts you inside a scam, a myth or a number trick for a few seconds, then shows you exactly what just happened. Try the message on the right.

See all the experiments Test your instincts
  • Free
  • No account
  • Runs on your phone
  • For every age
Live demo · safe to tap
9:41●●●● 5G
9 worlds

Pick a world

Each world is a set of short experiments about one part of everyday life. We open new worlds one at a time, once every experiment in it is polished and checked.

What should we build next?

Tell us a question you've always wondered about, or a mistake you've seen people make. We read every idea.

This box is the one place where what you type is sent to us. Please don't write your name, phone number or anything personal.

Why people trust it

Made to change habits, not just to entertain

Schools, families and government teams: we'd love to build worlds with you.

  • Runs on your deviceWhat you type or upload stays on your phone.
  • Arabic first, English tooWritten for the UAE, not translated as an afterthought.
  • Works offlineAdd it to your home screen and it keeps working with no signal.
  • For every ageLarger text, big buttons, and nothing to sign up for.
  • Shows its workingEvery experiment explains what happened and why.