This isnt what your looking for

This app does work but the creator just wants money, when you actually finish the video and want to send it out to people or save it to you camera roll the guy put words on it that say "water mark" and theyre every where it costs 5 buck just to remove them! I think thats pretty insane but you can try it out for your self if you want... I suggest getting SLOWCAM its really good

AdaezeS about Slow Motion & Fast Motion Pro, v1.1