Meet the Rode VideoMic Me: a compact, directional microphone for smartphones that lets you capture higher quality audio for your videos. It connects to your phone’s headphone socket and works for the front or rear camera. This microphone is compatible with iOS and Android devices.
VideoMic Me’s mounting bracket gives you some flexibility when using this microphone. The 3.5mm headphone jack on the rear allows for play-through of audio while recording. You also get a furry windshield for shooting outdoors. More information is available here.