When comparing OwnCloud vs Copy.com, the Slant community recommends OwnCloud for most people. In the question“What are the best cloud storage services?” OwnCloud is ranked 5th while Copy.com is ranked 18th.
Ranked in these QuestionsQuestion Ranking
Pro Open source software
Pro Allows selective sync
Desktop clients offer sync almost as versatile as dropbox.
Pro You have full control with your data
Only chose a provider or host it on your soho-server.
Pro Shared folder spacing control
Copy.com allows users to control how the shared folder can use others user account space, eg: if the main user account has 20GB of free space and wants to share the folder to other user, the shared folder can be limited to 5GB instead of fully occupying the other user's free space.
Copy.com is available on Windows, OS X, iOS, Android, Linux (including Raspberry Pi) and has a web app.
Pro Automatic photo backup
Copy.com allows users to automatically backup photos taken from the device through the feature called "Photocopy".
Pro 20GB for free-tiers
Free-tier of Copy.com allows for up to 20GB through the referral service (original is 15GB).
Con Not plug and play as Dropbox etc
You may need some help installing it on your web space, though some providers offer free install server.
Con It's shutting down
Copy is shutting down in early 2016