An app that turns the iPhone into a guitar amp has been updated with an array of new features that convert the device into a mobile recording studio.

AmpliTube already offered a nifty set of features for guitar-playing users of Apple mobile devices. Users could plug their guitar or bass into a phone, iPod touch, or iPad—via a $40 iRig—and choose from among five virtual amps and 10 “stompbox” pedal effects for live playing. The app even let users upload MP3s for solo jamming.

Version 2.0, unveiled Thursday by IK Multimedia, expands the £11.99/$20 app to allow single-track recording and the ability to export those recordings as high-quality WAV files, or by email as MP3s; four-track recording capabilities can be added to the app with an additional £5.99/$10 in-app purchase. The app also includes a “re-amping” feature that allows users to add effects to a recorded song without having to re-record it.

The update also addresses earlier criticisms by allowing users to import music directly from their iPod song library—or via Wi-Fi file sharing—where the tempo can now be slowed down or sped up without affecting the pitch of the song. And new stompbox options have been added to the sound effects library, bringing the total to 16. The developers say the app's overall sound quality has also been improved, and the update includes a setup panel with input and output level controls.


An update to the £11.99 AmpliTube for iPad is also expected shortly, IK Multimedia announced.

AmpliTube 2.0 is compatible with any iPhone, iPad or iPod touch running iOS 3.1.3 or later.