Since 2008, I'm really proud to keep providing my 3 famous apps for free ! They are now renamed and united in the powerfull SUNCATCHER APP: SUNRISE' : full 360° localized horizon photolvoltaic shades profiling SUNSET' : easy 3D perspective photovoltaic modules rendering SUNBAG' : next 24/48 hours & monthly photovoltaic energy forecasting Now it's time to build the Wattbag.com membership : be welcome on board ! For free, put your free bag on your back : - The SUNCATCHER interface above, as a front-end web app access (the free stuff). - live "on-site" photovoltaic PDF study including all SUNCATCHER results & graphs with Wattbag.com logo and watermark on it. For only 1$ per month, put your cool bag on your back : - The SUNCATCHER interface above, as a front-end web app access (the free stuff). - SUNBAG'48 Progressive Web App access on your android smartphone. - live "on-site" photovoltaic PDF study including all SUNCATCHER results & graphs with Wattbag.com logo but without watermark on it. For 10$ per month, put your premium bag on your back : - The SUNCATCHER interface above, as a front-end web app access (the free stuff). - SUNBAG'48 Progressive Web App access on your android smartphone. - live "on-site" photovoltaic PDF study including all SUNCATCHER results & graphs with your own logo and without watermark on it. - easy-to-use API access to our exclusive SUNBAG'48 algorithm !