Apps and updates: Cabinet PDF Reader, Scoople, iAnnotate PDF, Kindle, dJay and Gemini for Mac, and more

A slew of popular iOS and Mac apps updated, launched, or went on-sale recently, and 9to5Mac gathered the most noteworthy ones in our usual round up below. Today’s crop includes the iOS Kindle app expanding its offering for children, iAnnotate PDF for iPad beefing sync options, dJay and Gemini for Mac slashing their price tags by half, Sparrow for Mac going Retina, and more.

Check them out: