ProCam 2, a $2 still and video camera app by developer Samer Azzam, has added “4K Ultra HD video recording” via a $5 in-app purchase. Following a technique debuted in September by i4software in the $1,000 app Vizzywig 4K, ProCam 2 uses a hack to splice high-resolution still images together with an audio recording to simulate 4K video recording. ProCam 2’s videos save at 3840x2160 resolution, resulting in large file sizes—over…
