Does everything it says it does
This app don’t lie. It’s a great security tool for researchers. The learning curve is reasonable for basic functions that can get you started immediately. The features advertised in premium really do work, it allows you to install a root certificate and routes your traffic to a VPN server (which I believe is hosted on the locally on the device). This gives you the ability to peep into requests all apps send and the responses they get, even if they’re HTTPS. Check it out, see how popular apps work and how they protect their business logic and secure their applications. It’s quite fascinating.