Facebook has doubled down on its efforts to take on the growing Chinese short-video making platform TikTok, this time by launching a new app for creating and sharing raps.

Called BARS, the app is now available in the Apple App Store in the US and makes it easy to create and share raps so that rappers can focus on and experiment with the content, "rather than investing heavily in equipment and production".

The app makes it possible for rappers to create and share their raps using professionally created beats, and this is the second launch of the NPE team in the music space, following the recent public debut of the music video app Collab.

In the app, users will select from any of the hundreds of professionally created beats, then write their own lyrics and record a video. BARS can also automatically suggest rhymes as you’re writing out lyrics, and offers different audio and visual filters to accompany videos as well as an autotune feature.

There’s also a “challenge mode” available, where you can freestyle with auto-suggested word cues, which has more of a game-like element to it. The experience is designed to be accommodating to people who just want to have fun with rap, similar to something like Smule’s AutoRap, perhaps, which also offers beats for users’ own recordings.

"Audio production tools can be complicated, expensive and difficult to use. With BARS, you can select one of our professionally-created beats, write lyrics and record yourself dropping bars," Facebook said in a statement on Friday.

"BARS auto-suggests rhymes as you're writing to keep your flow going. You can also jump into Challenge mode and freestyle with auto-suggested word cues. Choose from a variety of audio and visual filters to take your creations to the next level," the company added.

Facebook's internal R&D group, the New Product Experimentation (NPE) Team, is behind the new experimental app.

The company said it will open up invites in batches for the app, starting in the US.