It seems dyndns is €24 per year. My baremetal hosting (4 Dedicated ARM Cores, 2GB memory, 200Mbit/s Unmetered, 50GB HD) is €43.2 per year. I am not ready to pay

It seems dyndns is €24 per year. My baremetal hosting (4 Dedicated ARM Cores, 2GB memory, 200Mbit/s Unmetered, 50GB HD) is €43.2 per year. I am not ready to pay more than €10 per year for a domain name. For the moment, I enjoy 3 free domain names from no-ip.org.