CodeCatching is an app that allows people to save stuff - receipts, images of important artifacts, documents, and of course, codes. This information is shared with other owned devices (Mac, iPhone, iPod, and iPad), through iCloud. CodeCatching does not pretend to be secure. It only a repository - a bit better than a post-it.
Totally rewritten. Now available for iOS, iPad, and there is a separate version for desktop Macs.