Caustic is an intuitive and reliable program which lets users to create songs with original sounds using tools including beatboxes, synthesizers, mastering machines, and effect racks. This application comes with a generous set of tools and offers you to modify songs and build your rack in real-time. There is a short tutorial that explains though instructions in each screen and basic usage at first launch. You can tamper with the sound as the song plays and discover the potential of this app by watching some online video tutorials. The editing and mixing controls comprises a plethora of knobs, virtual keyboards and buttons, and are easy to handle and intuitive. It is possible to tamper racks with a wide range of settings and combine different racks to build your song note by note. The user can get help with delay and reverb effects, a limiter and song sequencer, a built-in equalizer to adjust frequency and bass, and sound mastering options. Moreover, this utility enables you to alter the sound using distortion, chorus effects, audio compression, and many other tools. Caustic is a handy tool that assists you to create great-sounding tracks and build your audio rack.