What is this?

HeyPresto gives you and your friends a way to all secretly choose and then simultaneously reveal something – whether it's a message, a number or an image.

It's perfect for online games where you need to make a secret bid, or to choose and reveal a card.

How it works

1. Make a sealed 'box' for you and your friends to submit to.

2. Note the box's unique code and share it with your friends.

3. People's submissions to the box are kept secret until everyone's submitted.

4. Once all the submissions are in, open the box and see what's what!