Could you please recommend some alternatives to Google Drive? I am concerned about my privacy, security; plus I need to have an Android, OS X, and a web client as well. If there are such alternatives I would like to choose the one with the best user experience. End-to-end encryption is a big plus.
I already considered Bitcasa and Tresorit, both of which I have some serious problems:
"You agree that Tresorit may also transmit any data stored by You to a third party if Tresorit has a reason to believe that it is required:
7.1. To comply with any law or order issued by any legal authority. 7.2. To avoid infringement of the rights of a third party."
If the data stored should be encrypted and supposedly non-accessible by them, how does it make sense?
I read about a user of Bitcasa who found that it sends the encryption key to the server in plaintext. That is something quite different from end-to-end. :O Also it's not zero knowledge policy. Bitcasa's "convergent cryptography" also concerned me.