PocketLabWorks, Inc. is a Mountain View, California-based company specializing in iOS music applications and digital audio interfaces for guitarists and bassists. The company launched in August 2010 with three apps — PocketAmp (a guitar amp and effects simulator), PocketSing (a karaoke app with vocal effects), and PocketRap — and went on to develop the iRiffPort, a dedicated 30-pin digital audio interface designed to connect guitars and basses to iPhones, iPads, and iPod Touches with professional-grade audio quality. The iRiffPort was notable for its all-in-one cable-and-connector design, which eliminated the noise and feedback issues common with analog adapters of the era.

PocketLabWorks expanded its app lineup with PocketGK, a bass guitar amp simulator developed in partnership with Gallien-Krueger that recreated the tone and controls of GK amplifiers, and PocketHz, a chromatic tuner and song training tool featuring the company's patented WarpSpeed pitch detection technology. The company also collaborated with Megadeth bassist David Ellefson on the David Ellefson Rock Shop app, which combined amp modeling with Ellefson's signature bass and guitar tones alongside his Rock Shop tutorial video series. Under the leadership of Kevin Robertson, who served as president and lead engineer, PocketLabWorks carved out a niche in the early mobile music production space, focusing on making iOS devices viable practice tools for guitarists and bassists.