No, we don't put ads on your website through the chatbox widget or by any other means. Our business model is to provide access to our software because we believe it's the best straight-forward way to offer value.
Fuse IM does not sell data, we are supported entirely by selling subscriptions to access our platform.
For personal websites and casual users we have designed our system to be efficient in order to offer a simple chat version for free. It's also handy for customers to be able to downgrade to a free account and still access our service.