Can you use Boo for free?

I'm curious, could you elaborate on the question of whether or not it's possible to utilize Boo without any cost associated? Is there a free tier or a trial period available for users to test out the platform? Additionally, if there are any hidden fees or charges that could potentially arise during the usage of Boo, would you kindly provide some clarity on those as well? It would be greatly appreciated if you could shed some light on the matter.