iTunes is a library with best online destination for the storage of apps data like calendar, contacts, photos music files, TV Shows, movies etc at a safe place and it can be also found whenever needed. This feature of Apple Mac is supported with the devices like MacBook, iPhone and iPad etc. Usually, it runs without any error but due to some technical fault there could be issues with itunes error 6, itunes sync error 50, itunes error 11, itunes error 21 etc. The US and Canada users may be happy to hear that the online tech support is being offered for the sync error of iTunes. All the issues can be solved at just a single click by dialing the toll free number 1800-250-9055 of Apple Mac Tech Support Number which exists all over the year nonstop.