Looks like Recess Mobile acquired PennySMS.com and OhDontForget.com over a year ago. Here's their blog post about the acquisitions:

http://www.recessmobile.com/blog/recess-mobile-acquires-penn...

Looks like the Recess Mobile website is down right now, so here's Google's cache of the page:

http://webcache.googleusercontent.com/search?q=cache:WdqYHJK...