IFTTT helps connect different apps and devices. When you sign up for a free account, you can enable your apps and devices to work together to do things they couldn't otherwise do. For example, you can back up your Instagram photos to Dropbox, have your lights turn on when you enter your home, or automatically remind a Slack channel about a meeting.

Here's how it works:

1. Create a free account.
2. Browse the IFTTT website or app to find something that interests you.
3. Connect the services that are involved in the Applet or connection.
4. Find more Applets and connections, and repeat! 

Applets and connections can be built by services or users from the Developer Dashboard. You also have the power to create something custom for yourself! Go to ifttt.com/create to combine two services and make your own Applet!