Play anything backwards. Record your voice, reverse it in one tap, and add speed, pitch and ten effects. Set speed from 0.25x to 3.0x and pitch by ±12 semitones while you watch a live waveform, then export to WAV, MP3 or M4A. Ten Pro effects: Loop, Echo, Reverb, Bass, Filter, Lo-Fi, Flanger, Wave, Robotize and Compressor. There's no account and no cloud. Everything runs on your device and nothing is uploaded. There's also a free browser tool.