It is a well known app, someone piped in who didn't know the answer and would have been better to keep quiet so we don't have to read it. There are a lot of apps out there, however there is no real true replacement for it. Besides being free MPeg Streamclip was also capable of trimming, compressing, de-interlacing, stripping, joining, converting and many others. There is Movavi, Any Video Converter, Ensoft, Strata and more. Since I have Adobe's full package I have not bothered investigating to deep as Premiere is more of the go to with everything and the only thing I really need is a converter and I already have a paid version of Any Video Converter.