Syncthing
toolsA free, open-source peer-to-peer file synchronisation application that works across devices without a central server
Pronunciation
Correct
SINK-thing
/ˈsɪŋkθɪŋ/
Compound of 'sync' (from synchronise, pronounced 'sink') + 'thing'. The 'c' in sync is silent before 'th'.
Source: syncthing.net(official spec)