*Third Party Reviews--Lumeniquesslhttp://lumeniquessl.com/2014/08/13/light-meter-reviews-comparison-summary/--EDN NETWORK...*Third Party Reviews--Lumeniquesslhttp://lumeniquessl.com/2014/08/13/light-meter-reviews-comparison-summary/--EDN NETWORK http://www.edn.com/electronics-blogs/other/4431278/Comparing-handheld-spectrometers---and-what-s-in-it-for-you----CheesyCamhttp://cheesycam.com/uprtek-mk350-vs-asensetek-lighting-passport-led-spectrometers/*Expert Endorsement--Serena Tellini and Francesco Iannone(European Famous Lighting Designers)https://www.youtube.com/watch?v=cb7zWRGDPEM--James Yuan(2008 Bejing Olympic Lighting Designer)https://www.youtube.com/watch?v=gTW5PjjMPNY______________________________________________________________The Best tool for communication about light and color! Spectrum Genius is a powerful App that has to be used with Asensetek smart spectrometer "Lighting Passport". Spectrum Genius provides you friendly UI and rich information critical to everyone concerns about light and color.You can measure and get almost all photometry : Spectrum, CCT, CRI, R1~R15, CQS, Illuminance(lux), Foot Candle, p, D, CIEx , CIEy, CIEu, CIEv, Purity, C78.377-2008, IEC-SDCM, and so on. With Spectrum Genius and Lighting Passport, you become an expert about lighting. No more obstacle communicating with supplier, colleague, client, designer ,film maker and photographer.Now SupportiPhone4S and later versioniPad mini and later versionThe new iPad and later versioniPod touch 5 and later versionSuggest you update iOS to the latest one for best user experience.