MacPaw Inc. is a software development company that specializes in the development of programs for OS X computers and related devices. The company operates out of locations in Santa Clara, California, and Kyiv, Ukraine. The most well-known product offered by the company is CleanMyMac 2, a software utility that improves the performance of Mac OS X computers by removing unnecessary files and optimizing settings. The company also offers CleanMyDrive, a program for removing junk files from HDDs and flash drives, and CleanMyPC, an optimization program for Windows computers. Other software products developed by MacPaw include the duplicate file finder Gemini, the data encryption program Hider 2 and the iPhone music player Listen.