Cisdem iPhoneCleaner - Safe iPhone cleaner to clean iPhone, iPad, iPod touch junks to free up space and backup iPhone Mac.
The Product Management guide - A book on how to create and ship products that people love
iMyfone Umate - iMyfone Umate is an iPhone space saver which helps iPhone/iPad/iPod touch users free up iPhone...
Product School - The global leader in product management training
IceCream - Free up space fast and never miss a moment again
Product Management Exercises - A repository of product manager job interview exercises