Overdub app for iPhone and iPad

Overdub is layered sound recorder and sampler sequencer. Use the microphone on your iPod/iPhone/iPad to record and layer drums, bass, vocals etc.

Perfect for musical "sketching", singing, beatboxing, rapping, or remixing / experimentation.

Overdub can also be used for adding commentary on top of a recording, or editing a recorded interview on the go.

Features:
▶ Record and play at the same time.
▶ Layered tracks with separate Volume / Pan / Mute controls.
▶ Audio clips can be Cut / Reversed / Pitch-Shifted / Stretched.
▶ Song resizes automatically to fit all sound clips.
▶ Multiple selection / operations.
▶ Import tracks from iTunes playlist.
▶ Metronome / countdown.
▶ Loop recording / overdubbing.
▶ Track volume and pan are controlled by curves.
▶ Undo / Redo, Copy / Paste.
▶ Flexible zoom.
▶ Export to .m4a, email, SoundCloud.
▶ Back up projects via email attachments.
▶ Record or play while in background.

Usually Overdub iOS app used & searched for