Is there any difference between personal firewall and software firewall?

Yes, there is a difference:

A personal firewall is designed for individual devices like laptops or PCs. It monitors and controls traffic coming in and out of that single system to protect it from threats.

A software firewall is a broader term—it can be installed on individual devices (like a personal firewall) or on servers to protect multiple systems.

So, all personal firewalls are software firewalls, but not all software firewalls are personal firewalls.