ownCloud
Free Personal
ownCloud is a free and opensource file sync and share app which is self hosted.
fruux
Freemium
fruux is a cross-platform synchronization service.
gSyncit
Commercial
gSyncit is an Outlook cloud synchronizer.
Memotoo
Commercial
Memotoo sync all your contacts from Gmail, Facebook, phone, Thunderbird, Outlook, etc in a single address book.
GO Contact Sync Mod
Open Source
GO Contact Sync Mod is a tool that synchronizes your contacts.
Funambol
Open Source
Funambol is a provider of platforms that power many cloud services.
Compare Google Sync with alternatives
Compare ownCloud and Google Sync and decide which is most suitable for you.
Compare Memotoo and Google Sync and decide which is most suitable for you.
Compare GO Contact Sync Mod and Google Sync and decide which is most suitable for you.
Compare gSyncit and Google Sync and decide which is most suitable for you.
Compare Funambol and Google Sync and decide which is most suitable for you.