Aspectra is a system of some applications, utilizing Android devices and some additional hardware. Purpose of these applications is to observe, display and analyze the spectrum of observed light Aspectra mini is the base application in Aspectra system. The Android device, with additional low cost spectrometer, can be used to observe the spectrum of light. Spectrum is shown as intensity plot. Every plot can be saved for the future analyze with another applications: Aspectra viewer (explorer for spectra) Aspectra analyzer (editor for spectra). Possible applications: teaching spectroscopychemical analyzedistance measurementcontrol of LED light source colorastral spectroscopyTo see the spectrometer construction's details, visit my web page: www.jandrotek.de.