Both sync and synch are given as spellings, and a browser search indicates that both forms are in about equal use: ... The spelling synch presents no difficulty of pronunciation to speakers who know the origin and pronunciation of the shortened word.
Is syncing correct?
The spelling "synch" is a variant of "sync", and "sync" (synced) is the one mostly used. Both are the informal short form of synchronize (as in synchronization). I have several computer-savvy friends, and they use the word a lot.
What is meant by synching?
sync Add to list Share. Sync, short for "synchronize," is a verb for making things work together. When you lip-sync, you are moving your mouth to exactly match someone else's words spoken or sung at precisely the same time. ... The word now means any type of such matching up, including personal relationships.