HitFilm 3 Express is currently available for free over on this site: https://hitfilm.com/express
While HitFilm is generally a vehicle for filmmakers, it has compositing features that make it ideal for generating motion graphics. A few things to remember:
~ HitFilm does not accept the import of vectors. You'll have to export all vectors to .png files to use them as assets.
~ Hitfilm's mac version only works with OS X 10.8 or higher.
~ In HitFilm, you must create a composite shot in order to use keyframing and effects. Composite shots are similar to After effects' precompositions. HitFilm has two modes to create work in: the editing mode and the compositing mode. When your composite shots are complete, switch back to the editing mode and the composite shots are in the assets window ready to be dragged & dropped into the NLE.
~ Unlike HitFilm 3 Pro, Express only exports up to 1080p.
Hope This Helps.