WALTR is designed to make it easy to upload and convert any music or video file to an iPad or iPhone format for native playback. It supports a huge variety of media file types, including MP3, MP4, AVI, CUE, WMA, M4R, AAC, M4V, M4A, FLAC, ALAC, MKV, and more. It even supports file types that are not normally compatible with iOS, including MKV, AVI, FLAC, and CUE, allowing them to be played in the native Music and Movie apps on iOS. Using WALTR is simple. After closing iTunes, a user just needs to plug an iPhone or iPad into a Mac, open the app and drag & drop any music or video into WALTR for immediate transfer to the iOS device. Overall, the WALTR process is simpler than converting via a separate app and then uploading through iTunes.

An awesomely cool app name – Inspired by Walter White from Breaking Bad.

The promise of Waltr is that the app makes it possible to transfer any type of video or audio file, regardless of its format, to your iOS device with playback of the file in Apple's Music and Video apps. As opposed to similar apps that require you to install a companion iOS app on your device, limiting access to the files within that app (and limiting access to features such as AirPlay in some cases).