The developers at S4BB are having a 50% sale on all productivity and self-improvement apps as well as their series of eBooks. There are some great deals here so take advantage before the sale ends September 16th.

S4BB is running a 50% sale on all of their popular productivity and self-improvement apps as well as their series of ebooks in the CrackBerry App Store. You can snag some great apps for a huge discount here. A few of their apps have some crazy price tags, so if you’ve been holding out now is your chance to get it while the gettin’ is good.