Do you need a firewall? Do you not want to pay big bucks for one? Do you have a PC running a Windows OS?
Good news from Comodo, there exists such an app.
It's called Comodo Free Firewall for Windows, and while the pay version gives full protection, the free version is no slouch and is loaded with options and features.
Makes having a good firewall free and easy!Features:
It is 5 Star CNET rated, CNET Editors' Choice, OPSWAT Gold certified, AV-TEST Top Product (January 2018) Anti-Malware product.
It also features DDP, or Default Denial Protection, which is basically a software bouncer: If a piece of software (two million apps and counting on the list) that has been deemed safe is not on the list, it lets you know that you might have run into dome malware, pre-infection.
Basically, it works on the concept of prevention rather than just a list of malware to maintain and slow your computer down.
It's not complicated, it personalizes itself to each user, it's GUI is user friendly, control freaks get lots of fiddly things to adjust if they want, or you can let the program decide on default settings.
With things up in the air due to current world situation, and uncertain times, including possibly not having a lot of money, Comodo helps out the average consumer with a user-friendly, up-to-date, innovative free firewall.