Dear App Developer, it would be fantastic if we could create our own timer instead of being limited to a set of developers based on the film I choose and a general configuration based on my preferences. However, MassiveDevChartTimer is only for black-and-white film stock development, and doesn't help with color film (C41, E6, ECN2 and other) development. Regrettably, I wouldn’t recommend MassiveDevChartTimer to anyone due to it's limitations. In MassiveDevChartTimer, you can only make minor adjustments to saved “favorite” processes, which is practically useless for many seeking to develope at home. I would like to see a development timer that allows me to add or remove a few stops from my development time. This tool is not worth the $8.99 USD I paid for. I’ve switched to another app which has most of my requested features called “Develop!” and it's FREE!!! Hopefully you can improve this application.