This application, combined with the GoSpectro accessory, allows to turn any smartphone into a light spectrometer in order to measure, record, analyze and export spectral data. It is the ideal companion for students, professionals or anyone who needs to measure a light spectrum on the go. This enables to perform material characterization and analysis with an ultra-compact device natively connected to the internet, with applications in gemology (gem identification), food industry (color measurement, allergen detection), water quality (pollution detection), academia/teaching, anti-counterfeiting, art, etc.