Whether you’re making a movie, building a podcast, or just pasting two MP3s together, at some point you'll want to edit an audio file on your Mac. GarageBand can handle lots of audio-related tasks, but Fission, by revered Mac developer Rogue Amoeba, can handle fast edits and format conversions much more easily. It's simply packed with useful features.
Using QuickTime Player, you can record audio from a connected device, such as a microphone, but not from an application. Workarounds for app recording exist, but they are typically pricey and complex. Piezo is neither. It’s the kind of app that looks like it’s visiting from an iPhone, and it’s as easy to use as any iOS app.