Ringer is all about making the process of creating a ringtone effortless. You can load any QuickTime-compatible file (including videos), and the app helpfully places your iTunes media in its sidebar. This is rapidly filtered, Spotlight-style, so you can easily access a particular song or snippet of audio saved from another app just by typing a couple of words.
GarageBand puts its ringtone-creation feature front and center on the welcome screen, but using its complex interface can seem like overkill when all you want to do is trim a song to ringtone length and export it to iTunes. iToner does the same thing, with a simple, almost spartan interface. It even bundles a few premade ringtones, but they may be there solely to convince you that you can do a better job yourself.
GarageBand is great for huge projects and making your very own custom ringtones, but just launching the application can sometimes be a huge overkill. If you're in a jiffy and you just want to quickly extract a snippet, you can trim your favorite song in iTunes and sync it to your device. Read on to learn how it's done!