DynDNS no longer FREE! HELP

Just by going to http://myipaddress.com and you can figure out your ip address. What the nature of my post is that I rely on the router to automatically check my ISP assigned IP address and I use the “dyndns.org” subdomain name i.e “whatever.dyndns.com” and use it on my cell phone to access my home network/cameras/dvr etc when I am miles away from the router. Thanks for your input though but not the solution I need for my problem.