Having multiple Apple devices is so common, it feels more unusual when someone has less than two. If you're running DEVONthink on more than one Mac, it's likely you want to access the same documents on both. DEVONthink helps keep a local copy of your database on multiple Apple devices in sync with each other. Changes made on one machine propagate to the others. The sync doesn't require using a cloud service, though that may be an option, but can usually be handled locally and privately. It also can include encrypting the sync data as it's sent and stored, adding one more layer of privacy.

In a business, academic, or even a group collaborative setting, you can share a DEVONthink database. With the built-in web server, provide controlled, per-database access, even in a cross-platform environment. Ideal on a local network, with some technical know-how, you can even share over the Internet.