Router manufacturers have released patches that implement "WPS Lockdown" (after 5 failed pins, the router reboots or locks WPS for 24 hours). Update your firmware to get these patches.
Because of these barriers, the vast majority of users are now looking for solutions that work on stock, unmodified Android systems. They want the "pro" experience without the headache.
Understanding is less about getting free internet and more about understanding how security evolves. Ten years ago, you could drive through a city and connect to 20 routers using default WPS pins. Today, that is virtually impossible.
The standout feature of "no root" versions is that they work on modern, unmodified Android devices. Historically, viewing saved Wi-Fi passwords or performing deep network audits required rooting your phone (which voids warranties). These apps bypass that barrier, allowing you to check if your own home router is vulnerable to common PIN-based attacks using standard Android APIs. The Bad: Limited Functionality Without root access, these apps are significantly neutered. No Password Viewing