It may no longer be a leading light in the DAW world - its interface is looking seriously dated - but when it was launched in 1998, its automatic audio timestretching and pitch shifting marked Acid out as revolutionary.
These features remain Acid’s key strengths, though it should be noted that the program can now handle MIDI, too (and, as of version 7, video). It may not be the flashiest app on this list, but Acid remains fast, capable and easy to use. If you want a cheaper taste of it, try Acid Music Studio 10, which was released earlier this year.35 Stars
FULL REVIEW:Sony Creative Software Acid Pro 7
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