Avid’s Pro Tools audio production software is considered by some as the staple of the music industry and Avid is now providing a junior version for free. It includes a “subset” of the usual features (you’re mainly missing extra tracks, score editing and video playback), but it otherwise behaves like the paid version. You will not have to relearn anything if you become really successful and start using the full software.

Avid earns its money through the App by after-the-fact purchases. You’ll get 21 audio effect plugins from the outset, but you’ll have to pay for more. You can keep three projects in the cloud for free. While you can export finished tracks, you pay for permanent offline copies or more online space. Possibly a cheap way to get started until you are ready to consider the benefits of using the full software.