Vyte lets your assistant access your account without having to create a new one through the "Assistant Password"
In the top right corner next to your account's profile picture, click on the down arrow for the drop-down box
Click on "Settings"
On the next screen, click on "Account" in the top left corner
Click on "Assistant Password-PRO"
Unlock the "Password for my assistant" feature
Enter and reconfirm a Vyte password for your assistant
Click on the green "Create" button
Now your assistant will be able to login to your Vyte account from vyte.in/assistant using the mail address of the Pro Account (not the assistant mail) and the new password.
And, of course, your assistant won't have access to your Google or Office 365 account.