Mickey Scheme is an interpreter for R7RS Scheme written in C++
Tag: R7RS
Chibi Scheme Build for an OS X library and iOS REPL
Meng Zhang set up project files for building Chibi for OS X and an iOS REPL here.
With virtually no iOS knowledge I just checked it out, built it, and ran it on the simulator in a couple of minutes.
Thank you Alex and Meng!
(via chibi-scheme)