The Meeting App
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There are two versions. One is a $9.99 Mac app. It's set up so that you can use the app with only basic set of features, or manage every aspect of running a meeting through it. Features get enabled only if you use them; otherwise they stay out of your way.
The $4.99 iOS app can be used as a standalone meeting notes writing app. It offers everything the Mac app does but has a touch-based interface for use with one or two fingers. Content management is easy.