You can review the latest version of the program Sound Normalizer here

The alphaSXplayer is a FREE, powerful iOS application for recording and playing audio, adding sound effects and adjusting playback options (such as variable playback speed, pitch, A432Hz instrument tuning and etc). The main features: - custom speed of playback - custom pitch (timbre) - A432Hz instrumen tuning - Ten bands equalizer - build sound effects like reverberations, echo, ...