Extensions included in DEV package

Hi there, 
The Developer Subscription grants you all Magento 1 & Magento 2 themes, with all extensions built-in those themes. For Magento 2, you will get three standard extensions including UB Mega Menu, UB Content Slider and UB Quick View. 
UB Data Migration Pro and UB Instant Layered Navigation for M2 require separated purchase though.
Regards,
Ubertheme team