Jungle Disk vs SpiderOak

Jungle Disk
Robust business-class desktop and server backups, file sharing and real-time sync designed for multiple users and teams.
Online file storage that aggressively deduplicates data, allowing to save everything you upload, including all versions. They provide nice clients for Mac, Linux, and Windows. And they’re cryptographically secure from the moment your data leaves your computer - unless you hand over your password, even the folks who work at SpiderOak can’t see your data.