The Massive Dev Chart is the world's largest film development chart with easy to use multi step timer and darkroom support for iPhone, iPad and iPod Touch. Watch the instructional video at: https://www.youtube.com/watch?v=P915z6THiY8. *** Reviews *** "If you use a darkroom, or if you dev the odd roll at your kitchen sink, buy it. Essential: 10/10" (http://www.thephotographypages.co.uk/2009/07/eleven-iphone-apps-for-photo- graphers/) "The Massive Dev App... is well worth it. I highly recommend this iPhone app." (http://blurdotblog.com/?p=1159) "...solidly built and extremely well thought out app. Everything works in an extremely intuitive manner, and the audio reminders are extremely helpful." (http://fotogogo.blogspot.com/2009/09/app-review-massive-dev-chart-for-iph- one.html) *** Features *** • Offline copy of The Massive Dev Chart in your pocket • Multi Step Timer with sound notifications • Customizable agitation scheme • Darkroom themes • Dilution Mixer • Support for two-step development and two-step fixing • Support for optional hypoclear and photo flo steps • Automated development time/temperature compensation