Verizon Cloud Whatsapp Backup?

Verizon Cloud can back up and sync your:

Contacts
Pictures
Videos
Music
Documents
Text and multimedia messages
Call logs*

I would like to know if the Verizon Cloud backsup the whatsapp/viber messages and/or call logs?
is there any trace to any message or voice call log for third party applications - viber/whatsapp/skype?

Does it backup the backup file for the iphone? Is there a way that someone could restore the whatsapp/viber/skype history/database using the verizon cloud?

My intention is to keep it private and have no backup/trace.

The problem is, you do not have control over the other side of any of your conversations.

Whatsapp allows for backing up of it's call log and text conversations, and iTunes can backup everything saved to their phone. So anything they wish to backup, is theirs to do so. And there are of course third party options for make recordings of any voice call, including using a external recording device.