But taking these free (yes, free!) apps away from an audio creation context, two in particular are indispensable for quickly and easily sending files to the cloud or listening to audio.
1. Cloud - this is a simple little app to enable very easy transfer of files to cloud storage. The basic plan is free, and fine for most file-transferring needs but not suitable so for long-term backup or storage. Once signed up, simply dragging a file into the app's icon will transfer it to the cloud. Further streamlining things, as soon as the upload is complete the link to your upload is automatically copied to your clipboard, ready to paste into an email.
2. Vox - anyone on a Mac would be familiar with the common process of being able to listen to an audio file such as a WAV or mp3 by simply highlighting the file and pressing space bar (to play it in the Finder preview window) or double clicking it to open it in iTunes. Each of these processes has its shortfalls. The preview window won't enable the audio file to keep playing in the background if you switch to another app or select another file. Alternatively, adding a file to iTunes every time you listen to something new is a time consuming and unnecessary process. Vox is a lightweight audio player which is great to get around both of these issues. I especially like the app's icon which displays a neat, circular playback progress status during play.
Hope these tips help musicians and non-musicians alike.