is refund for full purchase or also for upgrades? is Level 11 time limited? i have perpetual professional license. i will have Level 11 forever, or until Unity 6? when i have pro subscription, i think i will have Level 11. will all free assets mine after i cancel my subscription? does ios and android free versions have all pro engine features like post effects? to use team feature should i download cache server? link does not work; http://unity3d.com/unity/collaboration it is bad i cannot use ios and android pro subscription with perpetual unity pro version.