2-Factor Authentication Licensing

Options

The recent news about Teamviewer implementing 2-factor authentication is great, and is a solid security improvement. However, the improvement is unusable for small accounts because it requires the TeamViewer App on your phone to be connected to your account, consuming an available installation seat for your company.

I cannot connect my phone to take advantage of the 2-factor authentication because I have reached my install limit with my own desktop and laptops, and I certainly cannot spare installs for our leadership as scenario 2 and 3 imply.

Teamviewer - what steps will you take allow smaller accounts to use 2-factor authentication? Teamviewer is already an expensive product, and increasing our security should not require us to purchase additional seats.