Completely remove Circle from RAX80

Hi there, bought a RAX80 and I foolishly installed the Circle app.

I won't go into all the immense problems this caused, but I really want to delete it and any options that may have (by default) been activated on the RAX80.

I set up profiles for my children, linking their devices, and I have regretted every moment. Circle will arbitrarily allow updates through for their devices and then block updates (from the same supplier). I am sick of it.

Is it just a matter of deleting the app from my iPhone or were settings changed on the router to accommodate the profiles, device recognition etc?