"Express file" - server of information exchange.

You can use anonymously the server saving the files. In this case the access to the objects will be possible only with a key which you will receive after creating the object.

Express message
Message will be delivered even if a recipient is not registered yet.
Specified phone number will get SMS with the account access information.
Express sign up to EXMAIL.
To create mailbox at ex.ua just enter yout phone number.