Convert your iDevice into a portable digital oscilloscope! An affordable way to plot audio signals, monitor equipment, analyze events and test circuits. A great learning tool - get the basics of signal measurements without spending several hundreds on a real scope.

LED Audio Spectrum

LED Audio Spectrum emulates a classic spectrum analyzer device. The app uses the iPhone's microphone to visualize music through colorful 2D graphics that bounce to the beat!


ClockMaster is dedicated to the measurement and regulation of mechanical pendulum clocks. The app uses a microphone to capture the audible ticks of the clocks escapement and pendulum, and then determines the beats per minute and the rate of error in seconds per day fast or slow.


MetroTimer is the most accurate metronome app in the App Store. It provides highly accurate audio and visual feedback, and easy to use timer to track your practice sessions.


For those who loved listening to rock'n roll on tiny transistor radios, those who find modern digital audio too clean, and those who want to create a retro mood with music, Retro-Fi is the solution!

Spectrum Analyzer

Spectrum Analyzer for iOS is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound.