The real Dropbox synchronization.
There are many programs using Dropbox. But usually they make only a backup your pictures. That is a one-way synchronization.
But with Dropsync you can have real two-way synchronization.
With this program you can make the following:
Choose one (or more with PRO version) folder in your phone, and sync it to Dropbox. With the official desktop application of Dropbox you can have the same folder in your desktop computer.
Now, when you copy a new file to your desktop folder, it will go to your phones folder. And back.
So this program can help to really synchronize between the desktop and the phone. And if you want, you can sync with your family, friends, etc… You can have a main Share folder (like picture folder), that every friends can see.