DoubleTwist — the company behind the AirSync tool which allows users to wireless sync their iTunes data — has released a new Mac app, letting users rip songs directly from iTunes Radio.

Called AirPlay Recorder, the app basically tricks iTunes into thinking that it’s an AirPlay device, so that it will stream music. It then records that audio for later offline playback.

DoubleTwist, the company that has long been helping Android-powered devices work harmoniously with iTunes, today released a new Android app that lets users rip songs from iTunes Radio. Called AirPlay Recorder, the app essentially turns your Android device into an AirPlay receiver, then records all the audio that you play through it.

But is it legal?

The best thing about AirPlay is that it just works. It takes about two taps to send audio from an iPhone to an Apple TV or other supported device. The downside to AirPlay is that Apple owns it exclusively, and accessory makers have to pay a licensing fee to use it in their products. That means customers pay more for an average AirPlay-capable speaker vs. a Bluetooth box.

DoubleTwist, a small developer team behind some gorgeous Mac and Android apps, has an open source alternative to AirPlay called MagicPlay.

Everyone who owns an Apple TV loves AirPlay – it’s a fantastic way of streaming your moves and music straight to your TV that was previously a luxury only iOS and iTunes users could enjoy. However, thanks to the doubleTwist software, users can now send content to the Apple TV from their Android smartphones.

The doubleTwist software for Mac & PC advertises itself as “the iTunes for Android” and allows you to wirelessly sync your iTunes playlists, photos and videos to your Android phone with the accompanying Android application. Its most recent update introduced the ability to stream all of this content to the Apple TV over AirPlay.