It’s actually better for the brand to be more established on multiple platforms because as the targeted person switches apps, they will see your image again. This really increases the chances of you getting clicks and converting. The money aspect of your question is easy, start off by doing the s...
Consider doing an invention evaluation study. This can help you gauge overall consumer interest in your hardware, if indeed it's consumer facing. If it's not, then a full market study might be the way to go. However these studies are significantly more expensive. I'm happy to talk with you ab...