Originally Posted by FinancialWar
So currently only Mantano and Moon+ have sync function?
Most do actually, the majority of them use dropbox to sync your position I think Mantano is the only one that charges you extra if it didn't do that I'd consider it perfect.
My second favourite is one called Fabrik Pro it's a lot simpler optionwise but does a good job letting you store your books on a dropbox folder and syncing your reading position between devices.
The only other one I use sometimes is Google's own Play books which isn't bad either but means uploading your own files to Google it's also pretty limited in options but it's probably good enough for most people and makes everything pretty easy.