The iQuarius mobile system for water pipe leak detection from Aquarius Spectrum combines an Android app with an acoustic widget and a sensor, which creates a system that allows listening and recording via very low-frequency sound vibrations. It also provides a graphical presentation of these frequencies. It performs GIS-based acoustic logging that measures the vibration intensity in water pipes. The noise is recorded and automatically sent to the server for further analysis. It can perform correlation between two mobile sensors, allowing the user to pinpoint the exact location of a leak. It is ideal for leak detection service teams that can use it for both leak surveys and pinpointing. Results can be analyzed on the iQuarius web application. The app is available on Google Play. www.aquarius-spectrum.com.