Is this why my free personal TeamViewer has started telling me it's being used for work (even though it's not) -- to encourage purchasing this plan?
**bleep**
TeamViewer empowers people to help people beyond borders and barriers. Providing a free plan for personal use is part of this vision: we believe that helping friends and family should be possible for everyone. Therefore – all TeamViewer users without a paid plan can use the fundamental TeamViewer features like accessing computers remotely. These features are designed to meet the needs of most of our free users.
Certain features like User Management are limited to users with a paid plan for commercial use. Commercial use means using TeamViewer for your business, within a commercial network and remote work.