the droid maxx runs a mostly stock version of google's android mobile operating system, initially shipping with the version 4.2.2 "jellybean". jellybean 4.2 included various improvements to accessibility, new lock screen features with quick access to the camera, support for wireless display (miracast), and a new built-in clock application with world clock, stopwatch, and timer. motorola and verizon released an update to android 4.4 "kitkat" on 19 december 2013, and an additional update to android 4.4.4 on 15 july 2014. kitkat brought restyled navigation bars, "immersive" full-screen mode, strongner security, power management and some other minor improvements. motorola also enhanced its proprietary camera software for better color, exposure, and dynamic range accuracy and included the updated google hangouts application which included sms/mms messaging functionality. finally, support for the square credit card reader was added. the kitkat 4.4.4 update brought further improvements to camera functionality, improved bluetooth connectivity, and added isis mobile wallet (now called softcard).