Anytune - Anytune is an application that is designed to play songs directly from your iPhone or iPad music library, helping you to adjust tempo and pitch for each song according to your taste.
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Music Speed Changer (Classic) - Music Speed Changer (Classic) is an amazing mobile app that enables you to adjust the pitch and tempo of your music to make it slower or faster through sound touch processor.
AMPLI.FI - Live online music community. Twitch for tunes.
Audio Trimmer - The simplest way to trim your audio files
Krue - Twitch for music: live streams from amazing musicians