Pete mentions both of those, and another (and gives me a nice shout-out) in the readme:
There are some open source and commerical stacked implementations out there, yet none of them were flexible enough to fit my needs. Special thanks to Cocoacontrols for this article[1].
StackScrollView (BSD)
CLCascade (Apache 2.0)
stackcordion.git (CCPL)
Would like to point iOS developers to the excellent cocoacontrols.com for these and other projects, and a shameless plug for our Apple "SpringBoard" clone:
I've seen those, but they all were too inflexible. My stacked view calculates the widths dynamically, so any UIViewController can be added, not only one or two specific sizes.
https://github.com/raweng/StackScrollView https://github.com/openfinancedev/stackcordion