Trill Crowd Chat app for iPhone and iPad

Trill Crowd Chat is a new social media app for crowds. Its a "chat up people in bars" app, but with a lot more uses than you might expect.

We invented it, and we think theres nothing else like it.

You might use it to join a chat with a dozen other people at once, or perhaps to search for people with the same secret interests as you.

To use Trill, you write messages, but instead of giving them addresses, you give them passwords. Trill will then check every other device within perhaps 30m to find anyone else using the same password. When theres a match, Trill will then deliver your message to them and collect their message for you.

Trill is anonymous and private, so everything you write can remain a secret.

You might not get a response to your password search, but the full version of Trill lets you search with up to nine passwords at once.

Trill also has two preset passwords which everyone shares (“public” and “advertisement”) so you can send messages to every other Trill user in the room.

There are just three steps to using Trill:

1. Write a password (or choose a preset password).
2. Write a message to the other people using that password.
3. Turn the broadcast button on.

But, you need to be in a crowd, or at least not alone, for Trill to work. Also, for technical reasons, it only works on iOS devices.

The more people use Trill, the better it is. You might have to encourage some friends to also install Trill to try it out. In future, hopefully, Trill will be everywhere.

Once installed, Trill does not need telephone or Internet access, just your device’s built-in Bluetooth hardware. Trill will keep searching as long as the app is running and the screen is on.