I am using a free trial.
I want to change the url parameter through a deep link, but is it not possible because it is the free version?
Hey @seongjun, welcome to the retool community 
I don't think the free plan prohibits you from using URL params (don't quote me on that). What are you trying to do exactly?
Can I change the url of my homepage through the change value in my retool while embedding and using the retool?
Sorry @seongjun I don't understand the question fully.
Do you want to "redirect" a user based on url params?