Amium vs Streem: What are the differences?

Developers describe Amium as "Turn any file into a real-time activity feed and conversation". Amium turns every file into a conversation thread and activity feed. Files are synced and shared so you can work on them together and in real-time. Changes show up immediately in the conversation thread, and will also sync to your device. On the other hand, Streem is detailed as "Unlimited Cloud Storage For Your Media". Unlike other cloud storage tools, Streem takes up no space on your computer, but still gives you instant access to your files without any lag. All media on Streem is converted on-the-fly so you can access it seamlessly regardless of the device or bandwidth.

Amium and Streem can be categorized as "File Storage" tools.