A new videography app called Horizon uses the iPhone's gyroscope to automatically "level out" iPhone videos so they are always shot in landscape mode, avoiding the so-called vertical video problem. By automatically rotating video so that it is always horizontal, the app ensures that video is always kept in the default format for televisions and Apple's newer computer screens, but that it is always kept straight -- something that Instagram and other apps can do for photos -- but a feature that is unique for video. The biggest downside is that the app effectively crops video, reducing total resolution, in order to keep the video horizontal and steady. But, as many videos get reduced in quality when posted on
