SecureBeam!

SecureBeam combines all your clouds to the safest place in the web SecureBeam distributes each single file optimally over your Dropbox, your GDrive or several other cloud storage services. Your free quota will be combined to one big - and secure - cloud store. Features:-) SecureBeam encrypts and splits your file directly on your iPhone-) After that SecureBeam distributes the different chunks to all your cloud services - the more cloud stores you use, the more secure it becomes.-) SecureBeam provides an encrypted chat for each single shared file and informs you about file changes your collaborator performs on his device.