As we reported last night, Facebook’s new Slingshot app is now available for iPhone. The app briefly appeared on the App Store last week but was quickly removed. Slingshot is Facebook’s attempt at competing with the popular Snapchat messaging service.

Slingshot allows users send a photo or video with text or drawings to another person. The recipient, however, can not open the picture without acknowledging that they want to open it and “sling” another image back to the initial sender.

Slingshot is Facebook’s second attempt at a Snapchat competitor. Its last attempt, Poke, was rather unpopular and never caught on with the mass public.

The app is available on the App Store now. Like all of Facebook’s app, Slingshot is free. Read the full announcement post below:

With Slingshot, we wanted to build something where everybody is a creator and nobody is just a spectator. When everyone participates, there’s less pressure, more creativity and even the little things in life can turn into awesome shared experiences. This is what Slingshot is all about.

Photos and videos that don’t stick around forever allow for sharing that’s more expressive, raw and spontaneous. We can connect the same way we like to live: in the moment. We’ve enjoyed using Snapchat to send each other ephemeral messages and expect there to be a variety of apps that explore this new way of sharing. With Slingshot, we saw an opportunity to create something new and different: a space where you can share everyday moments with lots of people at once.

To get started on Slingshot, shoot a photo or video. It can be what you’re up to, who you’re with or a quick selfie. Add some text and color, then sling it to a bunch of friends. Here’s the deal: friends won’t be able to see your shot until they sling something back to you. They can then reply with a reaction—or simply swipe your shot away.

Using Slingshot has made us feel closer, and we can’t wait for others to try it out. It’s the second app from Facebook Creative Labs and is available today starting in the US on iPhone (iOS7) and Android (Jelly Bean and KitKat). Get it at sling.me/download

Check back here for updates, tips and other cool stuff.

-Will, Joey, Rocky and the rest of the Slingshot Crew