As the author says - Add the fun and excitement of big-budget Hollywood sci-fi and action movie effects to any video. It's completely true. How to make a professional movie effect? First - record a video, Second - select an effect, Third - Enjoy! Is that easy.
FxGuru has a bunch of effects -
Creating a video isn't hard at all -
Unfortunately, not all of these effects are for free. The most of them are divided to special packages which contains various effects. Although you can enjoy the free effects like: Piano Drop, Satellite crash, Dancing Android, Exploding barells and more.
Epic Movie FX is another app letting you make cool effects. It's all for free, but the effects are not so awesome as in FxGuru and number of effects is low. Interface could also be better.