You can easily log your dives on-the-spot manually inserting all informations, or you can import dives data from severals formats.
When you do anything on one device, all your others are synchronized in real-time. Your data are safe on the cloud, even if you re-install Divers Book.
You can post your dives, including photos, on Facebook, Twitter. You can also import and export your dives on Divelogs.de, one of the largest free online logbook for divers.